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Calculated Shard: 25 (from laksa022)

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curl -X POST \
  'http://laksa025.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/\')), getAhrefsUnparsedNoserviceFromURL(\'https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/lincolnurgentcare.com\/the-difference-between-pcr-and-antigen-tests\/","crawl_time":1775564022,"first_indexed_time":1643235231,"http_code":200,"src_unparsed":"com,lincolnurgentcare!\/the-difference-between-pcr-and-antigen-tests\/ s443","src_root_hash":"15201472189573710625","history_drop_reason":null,"meta_title":"The Difference Between PCR and Antigen Tests - Lincoln Urgent Care","meta_descriptions":["Wondering what the difference is between PCR and antigen COVID-19 tests? Read this blog from a top urgent are center to learn more!"],"attrs_boilerpipe_text":"COVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community.\nLincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing.\nWhile CDC guidelines on isolation and\/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests?\nWHAT IS A PCR TEST?\nWe touched on this in our\nlast post\non the topic:\n“A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.”\nPCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer.\nAfter a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days.\nWe’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes.\nWHAT IS AN ANTIGEN TEST?\nAccording to\nHarvard Medical School\n:\n“Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.”\nAntigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days).\nHowever, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care.\nTHE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS\nGenerally, the differences are technique, time, and usage. The cost often varies too.\nAn antigen test is a rapid test, while the PCR test traditionally takes a few days to return results.\nAn antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material.\nPCR tests are preferred\/required for international travel.\nOur price for an antigen test (self-pay) is $150; for PCR, the test is $200.\nWe offer both PCR and antigen tests at Lincoln Urgent Care.\nRAPID PCR TEST LINCOLN, CA\nLincoln Urgent Care can now also perform rapid PCR tests\nby appointment\nonly. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand.","attrs_markdown":"[*menu trigger*](https:\/\/lincolnurgentcare.com\/the-difference-between-pcr-and-antigen-tests\/)  [*menu trigger*](https:\/\/lincolnurgentcare.com\/the-difference-between-pcr-and-antigen-tests\/)\n\n[![Lincoln Urgent Care](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2025\/02\/LUC-GBUC-LUCR-Logo-3.png)](https:\/\/lincolnurgentcare.com\/)\n\nMon-Sat: 8AM-8PMSun: 9AM-5PM[Lincoln Clinic(916) 258-2751](<tel:(916) 258-2751>)[Granite Bay Clinic(916) 570-7265](<tel:(916) 570-7265>)[Roseville Clinic(916) 727-6846](<tel:(916) 727-6846>)\n\n- [Patient Services](https:\/\/lincolnurgentcare.com\/patient-services\/)\n  - [Urgent Care Services](https:\/\/lincolnurgentcare.com\/patient-services\/urgent-care-services\/)\n  - [Routine Medical Care Services](https:\/\/lincolnurgentcare.com\/patient-services\/routine-medical-care-services\/)\n  - [X-Ray Services](https:\/\/lincolnurgentcare.com\/patient-services\/x-ray-services\/)\n  - [On-Site Lab Testing](https:\/\/lincolnurgentcare.com\/patient-services\/on-site-lab-testing\/)\n  - [Covid-19 Testing](https:\/\/lincolnurgentcare.com\/covid-19-testing-information\/)\n- [Employer Services](https:\/\/lincolnurgentcare.com\/employer-services\/)\n  - [Workers’ Compensation Clinic](https:\/\/lincolnurgentcare.com\/employer-services\/workers-compensation-clinic\/)\n  - [Occupational Medicine Services](https:\/\/lincolnurgentcare.com\/employer-services\/occupational-medicine-services\/)\n- [About Us](https:\/\/lincolnurgentcare.com\/about\/)\n  - [Our Team](https:\/\/lincolnurgentcare.com\/about\/our-team\/)\n  - [Why Urgent Care?](https:\/\/lincolnurgentcare.com\/about\/why-urgent-care\/)\n  - [Insurance](https:\/\/lincolnurgentcare.com\/about\/insurance\/)\n  - [Gallery](https:\/\/lincolnurgentcare.com\/about\/gallery\/)\n  - [Blog](https:\/\/lincolnurgentcare.com\/about\/blog\/)\n  - [Careers](https:\/\/lincolnurgentcare.com\/careers\/)\n  - [New Patient Form](https:\/\/lincolnurgentcare.com\/about\/new-patient-form\/)\n  - [Contact Us](https:\/\/lincolnurgentcare.com\/about\/contact-us\/)\n- [Locations](https:\/\/lincolnurgentcare.com\/the-difference-between-pcr-and-antigen-tests\/)\n  - [Lincoln, CA](https:\/\/lincolnurgentcare.com\/lincoln-ca\/)\n  - [Granite Bay, CA](https:\/\/lincolnurgentcare.com\/granite-bay-ca\/)\n  - [Roseville, CA](https:\/\/lincolnurgentcare.com\/roseville-ca\/)\n- [Book Telemedicine](https:\/\/lincolnurgentcare.com\/telemedicine\/)\n\n[COVID-19](https:\/\/lincolnurgentcare.com\/category\/covid-19\/)\n\n## The Difference Between PCR and Antigen Tests\nJanuary 26, 2022 [by clara.ellis@lincolnurgentcare.com](https:\/\/lincolnurgentcare.com\/author\/clara-ellislincolnurgentcare-com\/)\n\n![COVID-ANTIGEN-TEST.webp](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2022\/01\/COVID-ANTIGEN-TEST.webp)\n\nCOVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community.\n\nLincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing.\n\nWhile CDC guidelines on isolation and\/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests?\n\n## WHAT IS A PCR TEST?\nWe touched on this in our [last post](https:\/\/lincolnurgentcare.com\/what-is-the-pcr-naat-covid-19-test\/) on the topic:\n\n*“A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.”*\n\nPCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer.\n\nAfter a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days.\n\nWe’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes.\n\n## WHAT IS AN ANTIGEN TEST?\nAccording to [Harvard Medical School](https:\/\/www.health.harvard.edu\/diseases-and-conditions\/if-youve-been-exposed-to-the-coronavirus):\n\n*“Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.”*\n\nAntigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days).\n\nHowever, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care.\n\nTHE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS\n\nGenerally, the differences are technique, time, and usage. The cost often varies too.\n\n- An antigen test is a rapid test, while the PCR test traditionally takes a few days to return results.\n- An antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material.\n- PCR tests are preferred\/required for international travel.\n- Our price for an antigen test (self-pay) is \\$150; for PCR, the test is \\$200.\n\nWe offer both PCR and antigen tests at Lincoln Urgent Care.\n\n## RAPID PCR TEST LINCOLN, CA\nLincoln Urgent Care can now also perform rapid PCR tests [by appointment](https:\/\/lincolnurgentcare.com\/pcr-testing\/) only. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand.\n\n- [Antigen Test](https:\/\/lincolnurgentcare.com\/tag\/antigen-test\/)\n- [PCR Test](https:\/\/lincolnurgentcare.com\/tag\/pcr-test\/)\n\n***\n#### [previousShould I Get My Cholesterol Checked?](https:\/\/lincolnurgentcare.com\/should-i-get-my-cholesterol-checked\/)\n#### [nextAnnouncing Our Granite Bay Location’s Grand Opening\\!](https:\/\/lincolnurgentcare.com\/announcing-our-granite-bay-locations-grand-opening\/)\n\n![footer-Logo](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2025\/01\/footer-Logo.png)\n\nLincoln Urgent Care, Granite Bay Urgent Care, and Lincoln Urgent Care Roseville are full-service urgent care centers with onsite x-ray and laboratory testing. Our team is dedicated to providing patients with affordable and timely care for their urgent care needs.\n\n[![](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2023\/08\/facebook.png)](https:\/\/www.facebook.com\/LincolnUrgentCare916)  \n **Lincoln Urgent Care**  \n77 Lincoln Boulevard Suite 1  \nLincoln, CA 95648  \nPhone: [(916) 258-2751](<tel:(916) 258-2751>)  \nFax: (916) 258-7172\n\n[![](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2023\/08\/facebook.png)](https:\/\/www.facebook.com\/GraniteBayUrgentCare916\/)\n\n**Granite Bay Urgent Care**  \n5290 Douglas Blvd  \n Suite 102  \n Granite Bay, CA 95746  \nPhone: [(916) 570-7265](<tel:(916) 570-7265>)  \nFax: (916) 200-2412\n\n[![](https:\/\/lincolnurgentcare.com\/wp-content\/uploads\/2023\/08\/facebook.png)](https:\/\/www.facebook.com\/p\/Lincoln-Urgent-Care-Roseville-61572376513848\/)\n\n**Lincoln Urgent Care Roseville**  \n5007 Foothills Blvd  \nRoseville, CA 95747  \nPhone: [(916) 727-6846](<tel:(916) 727-6846>)  \nFax: (916) 900-0947\n\nAs your trusted urgent care clinic, we would like to notify our patients about the Open Payments database put in place by the Medical Board of California as of January 1, 2024.\n\nThe federal Physician Payments Sunshine Act requires that detailed information about payment and other payments of value worth over ten dollars (\\$10) from manufacturers of drugs, medical devices, and biologics to physicians and teaching hospitals be made available to the public.\n\nThe Open Payments database is a national transparency program that collects and publishes information about financial relationships between drug and medical device companies and certain healthcare providers.\n\nFor informational purposes, please visit: [openpaymentsdata.cms.gov](https:\/\/openpaymentsdata.cms.gov\/)\n\nCopyright 2026 Lincoln Urgent Care\n\n- [Patient Services](https:\/\/lincolnurgentcare.com\/patient-services\/)\n- [Employer Services](https:\/\/lincolnurgentcare.com\/employer-services\/)\n- [About Us](https:\/\/lincolnurgentcare.com\/about\/)\n- [Privacy Policy](https:\/\/lincolnurgentcare.com\/privacy-policy\/)\n\nWe use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit \"Cookie Settings\" to provide a controlled consent.\n\n[Cookie Settings]()[Accept All]()\n\nManage consent\n\nClose\n\n#### Privacy Overview\nThis website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.\n\n[Necessary]()\n\nNecessary\n\nAlways Enabled\n\nNecessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.\n\n| Cookie | Duration | Description |\n|---|---|---|\n| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category \"Analytics\". |\n| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category \"Functional\". |\n| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category \"Necessary\". |\n| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category \"Other. |\n| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category \"Performance\". |\n| viewed\\_cookie\\_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |\n\n[Functional]()\n\nFunctional\n\nFunctional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.\n\n[Performance]()\n\nPerformance\n\nPerformance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.\n\n[Analytics]()\n\nAnalytics\n\nAnalytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.\n\n[Advertisement]()\n\nAdvertisement\n\nAdvertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.\n\n[Others]()\n\nOthers\n\nOther uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.\n\n[SAVE & ACCEPT]()","attrs_readable_markdown":"COVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community.\n\nLincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing.\n\nWhile CDC guidelines on isolation and\/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests?\n\n## WHAT IS A PCR TEST?\nWe touched on this in our [last post](https:\/\/lincolnurgentcare.com\/what-is-the-pcr-naat-covid-19-test\/) on the topic:\n\n*“A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.”*\n\nPCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer.\n\nAfter a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days.\n\nWe’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes.\n\n## WHAT IS AN ANTIGEN TEST?\nAccording to [Harvard Medical School](https:\/\/www.health.harvard.edu\/diseases-and-conditions\/if-youve-been-exposed-to-the-coronavirus):\n\n*“Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.”*\n\nAntigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days).\n\nHowever, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care.\n\nTHE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS\n\nGenerally, the differences are technique, time, and usage. The cost often varies too.\n\n- An antigen test is a rapid test, while the PCR test traditionally takes a few days to return results.\n- An antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material.\n- PCR tests are preferred\/required for international travel.\n- Our price for an antigen test (self-pay) is \\$150; for PCR, the test is \\$200.\n\nWe offer both PCR and antigen tests at Lincoln Urgent Care.\n\n## RAPID PCR TEST LINCOLN, CA\nLincoln Urgent Care can now also perform rapid PCR tests [by appointment](https:\/\/lincolnurgentcare.com\/pcr-testing\/) only. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand.","meta_canonical":null}

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5. Seen Status Check

ℹ️ Skipped - page is already crawled

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INDEXABLE

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CRAWLED

9 hours ago

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URL	https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/
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Meta Title	The Difference Between PCR and Antigen Tests - Lincoln Urgent Care
Meta Description	Wondering what the difference is between PCR and antigen COVID-19 tests? Read this blog from a top urgent are center to learn more!
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Boilerpipe Text	COVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community. Lincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing. While CDC guidelines on isolation and/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests? WHAT IS A PCR TEST? We touched on this in our last post on the topic: “A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.” PCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer. After a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days. We’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes. WHAT IS AN ANTIGEN TEST? According to Harvard Medical School : “Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.” Antigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days). However, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care. THE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS Generally, the differences are technique, time, and usage. The cost often varies too. An antigen test is a rapid test, while the PCR test traditionally takes a few days to return results. An antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material. PCR tests are preferred/required for international travel. Our price for an antigen test (self-pay) is $150; for PCR, the test is $200. We offer both PCR and antigen tests at Lincoln Urgent Care. RAPID PCR TEST LINCOLN, CA Lincoln Urgent Care can now also perform rapid PCR tests by appointment only. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand.
Markdown	[menu trigger](https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/) [menu trigger](https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/) [![Lincoln Urgent Care](https://lincolnurgentcare.com/wp-content/uploads/2025/02/LUC-GBUC-LUCR-Logo-3.png)](https://lincolnurgentcare.com/) Mon-Sat: 8AM-8PMSun: 9AM-5PM[Lincoln Clinic(916) 258-2751](<tel:(916) 258-2751>)[Granite Bay Clinic(916) 570-7265](<tel:(916) 570-7265>)[Roseville Clinic(916) 727-6846](<tel:(916) 727-6846>) - [Patient Services](https://lincolnurgentcare.com/patient-services/) - [Urgent Care Services](https://lincolnurgentcare.com/patient-services/urgent-care-services/) - [Routine Medical Care Services](https://lincolnurgentcare.com/patient-services/routine-medical-care-services/) - [X-Ray Services](https://lincolnurgentcare.com/patient-services/x-ray-services/) - [On-Site Lab Testing](https://lincolnurgentcare.com/patient-services/on-site-lab-testing/) - [Covid-19 Testing](https://lincolnurgentcare.com/covid-19-testing-information/) - [Employer Services](https://lincolnurgentcare.com/employer-services/) - [Workers’ Compensation Clinic](https://lincolnurgentcare.com/employer-services/workers-compensation-clinic/) - [Occupational Medicine Services](https://lincolnurgentcare.com/employer-services/occupational-medicine-services/) - [About Us](https://lincolnurgentcare.com/about/) - [Our Team](https://lincolnurgentcare.com/about/our-team/) - [Why Urgent Care?](https://lincolnurgentcare.com/about/why-urgent-care/) - [Insurance](https://lincolnurgentcare.com/about/insurance/) - [Gallery](https://lincolnurgentcare.com/about/gallery/) - [Blog](https://lincolnurgentcare.com/about/blog/) - [Careers](https://lincolnurgentcare.com/careers/) - [New Patient Form](https://lincolnurgentcare.com/about/new-patient-form/) - [Contact Us](https://lincolnurgentcare.com/about/contact-us/) - [Locations](https://lincolnurgentcare.com/the-difference-between-pcr-and-antigen-tests/) - [Lincoln, CA](https://lincolnurgentcare.com/lincoln-ca/) - [Granite Bay, CA](https://lincolnurgentcare.com/granite-bay-ca/) - [Roseville, CA](https://lincolnurgentcare.com/roseville-ca/) - [Book Telemedicine](https://lincolnurgentcare.com/telemedicine/) [COVID-19](https://lincolnurgentcare.com/category/covid-19/) ## The Difference Between PCR and Antigen Tests January 26, 2022 [by clara.ellis@lincolnurgentcare.com](https://lincolnurgentcare.com/author/clara-ellislincolnurgentcare-com/) ![COVID-ANTIGEN-TEST.webp](https://lincolnurgentcare.com/wp-content/uploads/2022/01/COVID-ANTIGEN-TEST.webp) COVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community. Lincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing. While CDC guidelines on isolation and/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests? ## WHAT IS A PCR TEST? We touched on this in our [last post](https://lincolnurgentcare.com/what-is-the-pcr-naat-covid-19-test/) on the topic: “A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.” PCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer. After a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days. We’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes. ## WHAT IS AN ANTIGEN TEST? According to [Harvard Medical School](https://www.health.harvard.edu/diseases-and-conditions/if-youve-been-exposed-to-the-coronavirus): “Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.” Antigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days). However, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care. THE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS Generally, the differences are technique, time, and usage. The cost often varies too. - An antigen test is a rapid test, while the PCR test traditionally takes a few days to return results. - An antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material. - PCR tests are preferred/required for international travel. - Our price for an antigen test (self-pay) is \$150; for PCR, the test is \$200. We offer both PCR and antigen tests at Lincoln Urgent Care. ## RAPID PCR TEST LINCOLN, CA Lincoln Urgent Care can now also perform rapid PCR tests [by appointment](https://lincolnurgentcare.com/pcr-testing/) only. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand. - [Antigen Test](https://lincolnurgentcare.com/tag/antigen-test/) - [PCR Test](https://lincolnurgentcare.com/tag/pcr-test/) * #### [previousShould I Get My Cholesterol Checked?](https://lincolnurgentcare.com/should-i-get-my-cholesterol-checked/) #### [nextAnnouncing Our Granite Bay Location’s Grand Opening\!](https://lincolnurgentcare.com/announcing-our-granite-bay-locations-grand-opening/) ![footer-Logo](https://lincolnurgentcare.com/wp-content/uploads/2025/01/footer-Logo.png) Lincoln Urgent Care, Granite Bay Urgent Care, and Lincoln Urgent Care Roseville are full-service urgent care centers with onsite x-ray and laboratory testing. Our team is dedicated to providing patients with affordable and timely care for their urgent care needs. [![](https://lincolnurgentcare.com/wp-content/uploads/2023/08/facebook.png)](https://www.facebook.com/LincolnUrgentCare916) Lincoln Urgent Care 77 Lincoln Boulevard Suite 1 Lincoln, CA 95648 Phone: [(916) 258-2751](<tel:(916) 258-2751>) Fax: (916) 258-7172 [![](https://lincolnurgentcare.com/wp-content/uploads/2023/08/facebook.png)](https://www.facebook.com/GraniteBayUrgentCare916/) Granite Bay Urgent Care 5290 Douglas Blvd Suite 102 Granite Bay, CA 95746 Phone: [(916) 570-7265](<tel:(916) 570-7265>) Fax: (916) 200-2412 [![](https://lincolnurgentcare.com/wp-content/uploads/2023/08/facebook.png)](https://www.facebook.com/p/Lincoln-Urgent-Care-Roseville-61572376513848/) Lincoln Urgent Care Roseville** 5007 Foothills Blvd Roseville, CA 95747 Phone: [(916) 727-6846](<tel:(916) 727-6846>) Fax: (916) 900-0947 As your trusted urgent care clinic, we would like to notify our patients about the Open Payments database put in place by the Medical Board of California as of January 1, 2024. The federal Physician Payments Sunshine Act requires that detailed information about payment and other payments of value worth over ten dollars (\$10) from manufacturers of drugs, medical devices, and biologics to physicians and teaching hospitals be made available to the public. The Open Payments database is a national transparency program that collects and publishes information about financial relationships between drug and medical device companies and certain healthcare providers. 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Readable Markdown	COVID-19 testing is now a regular part of life for many individuals across the country. As the Omicron variant emerges as the dominating strain of the SARS-CoV-2 virus, the unvaccinated and vaccinated alike are relying more and more on weekly (sometimes daily) tests to work, travel, or generally engage with the community. Lincoln Urgent Care is dedicated to offering our patients the best healthcare options available. As of January 2022, there are two broad categories of testing available to the public: PCR tests and antigen tests. They are both considered ‘diagnostic tests,’ which means either will be able to tell you if you are currently infected with the coronavirus at the time of testing. While CDC guidelines on isolation and/or quarantine will continue to evolve, understanding how these tests work is information to be aware of. A lot of our patients want to understand: What is the difference between PCR and antigen tests? ## WHAT IS A PCR TEST? We touched on this in our [last post](https://lincolnurgentcare.com/what-is-the-pcr-naat-covid-19-test/) on the topic: “A polymerase chain reaction (PCR) test is performed to detect genetic material from a specific organism, such as a virus. The test detects the presence of a virus if you are infected at the time of the test. The test could also detect fragments of the virus even after you are no longer infected.” PCRs determine whether the virus is present by looking for the presence of the virus’s genetic material. Most of the time, PCR tests are extremely accurate; the only drawback being the amount of time between getting tested and getting a definitive answer. After a sample is extracted (commonly using the deep nasal swab technique, although samples from the throat or saliva may be tested also), it’s sent to a laboratory for processing. Typically, that process lasts anywhere from 1-3 days. We’re pleased to offer PCR testing with results in 2-3 days. For those looking to obtain results faster, we suggest our new Accula SARS-CoV-2 test and a nasal swab, where we can return the results of your PCR test in as little as 30 minutes. ## WHAT IS AN ANTIGEN TEST? According to [Harvard Medical School](https://www.health.harvard.edu/diseases-and-conditions/if-youve-been-exposed-to-the-coronavirus): “Antigen tests detect specific proteins on the surface of the coronavirus. They are sometimes referred to as rapid diagnostic tests because it can take less than an hour to get the test results. Positive antigen test results are highly specific, meaning that if you test positive you are very likely to be infected.” Antigen tests, while offering results within 15-30 minutes with great accuracy, can return a higher rate of false negatives than the PCR test. Once infected, a patient ‘sheds’ the viral load in their system; these levels can vary widely over the course of infection. Test too early (or too late) and it may result in a false negative – but, antigen tests will detect active infection. Antigen testing is still widely regarded as the primary line of defense because they offer results in minutes, doesn’t require laboratory processing, and costs less out-of-pocket. You can even perform antigen tests at home – the Department of Health and Human Services will now send you four for free if you visit CovidTests.gov (tests expected to ship within 7-12 days). However, you don’t have to wait. Come see us and we can perform antigen tests on-site at Lincoln Urgent Care. THE DIFFERENCE BETWEEN PCR AND ANTIGEN TESTS Generally, the differences are technique, time, and usage. The cost often varies too. - An antigen test is a rapid test, while the PCR test traditionally takes a few days to return results. - An antigen test looks for specific proteins found on the surface of the virus, while a PCR test seeks out and amplifies the presence of the virus’s DNA material. - PCR tests are preferred/required for international travel. - Our price for an antigen test (self-pay) is \$150; for PCR, the test is \$200. We offer both PCR and antigen tests at Lincoln Urgent Care. ## RAPID PCR TEST LINCOLN, CA Lincoln Urgent Care can now also perform rapid PCR tests [by appointment](https://lincolnurgentcare.com/pcr-testing/) only. This new test returns PCR results in as little as 30 minutes. If you don’t see availability in our appointment portal it means our schedule is fully booked. Please continue to check our online openings as we do our best to keep up with the demand.
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