{"id":49078,"date":"2020-08-18T20:33:00","date_gmt":"2020-08-18T17:33:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/are-coronavirus-rapid-tests-really-accurate-experts-weigh-in\/"},"modified":"2020-08-18T20:33:00","modified_gmt":"2020-08-18T17:33:00","slug":"are-coronavirus-rapid-tests-really-accurate-experts-weigh-in","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/are-coronavirus-rapid-tests-really-accurate-experts-weigh-in\/","title":{"rendered":"#Are coronavirus rapid tests really accurate? Experts weigh in"},"content":{"rendered":"

“#Are coronavirus rapid tests really accurate? Experts weigh in<\/strong>”<\/p>\n

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August 18, 2020 |<\/span> 1:33pm |<\/span> Updated August 18, 2020 | 1:33pm<\/span><\/p>\n

\n Waiting for a coronavirus test result can vary from less than an hour to up to a week, depending on the type of COVID-19 test you take. Many people choose the rapid test to get results immedia<\/a>tely, but how accurate are these quick turnaround tests?<\/p>\n

\u201cTests that are rapid, usually providing results within 30 minutes, are not as sensitive as the traditional test that is sent into the laboratory and general<\/a>ly takes half a day to several days to get a result on,\u201d Dr. Romney Humphries, Ph.D., Director of Clinical Microbiology Laboratory at Vanderbilt University Medical Center, told Fox News<\/a>.<\/p>\n

\u201cThere is a 75-80% detection rate for rapid testing compared to 90-95% with traditional, lab-based tests.\u201d Humphries, also a member of the Infectious Diseases Society of America, added.<\/p>\n

Humphries added that the\u00a0rapid test\u2019s ability to correctly identify those with the disease \u2014 \u00a0test sensitivity \u2014 \u00a0may not always be clinically relevant.<\/p>\n

\u201cSome studies have shown that rapid tests miss low levels of virus. A patient may have low levels of the virus if they are early in the course of infection before the virus has had a chance to replicate itself, or at the end of infection when the infection is dying out.\u201d<\/p>\n

Humphries, also a professor of Pathology, Microbiology, and Immunology at Vanderbilt University Medical Center, noted that this could be a potential problem with spreading the virus.<\/p>\n

\u201cIn the former case, missing a positive is problematic, because that is a patient that can then go on an infect others, thinking they are negative. In the latter case, the low-levels of virus may in fact be dead virus, and that patient may not be infectious.\u201d<\/p>\n

Although the wait time for the results of the two tests differ, the technique app<\/a>ears similar in terms of swabbing the nasal passageway.<\/p>\n

According to the U.S. Food and Drug Administration (FDA), the antigen test \u2014 commonly known as the \u201crapid diagnostic test\u201d where results are given within minutes to an hour \u2014\u00a0 detects specific proteins on the virus\u2019s surface. It is usually highly accurate, though more likely to miss an active infection compared to the molecular test, the FDA stated on its website.<\/p>\n

Some studies have shown that rapid tests miss low levels of virus.<\/p>\n<\/blockquote>\n

Meanwhile, the molecular test, also known as the RT-PCR test, nucleic acid amplification test (NAAT), or diagnostic test, detects the virus\u2019s genetic material and typically can take a day up to a week, depending on the demand on the lab. According to the FDA, this test is highly accurate and usually does not need to be repeated.\u00a0The FDA advises if you do have symptoms but your rapid antigen test is negative, your health care provider may want to order a molecular test to see if you do indeed have an active infection.<\/p>\n

As for which test Humphries prefers,\u00a0\u201cI think the laboratory-based test with longer results is the preferable approach, when possible. That being said, there are times when this is not possible, and the rapid tests in the right context work well,\u201d she said.<\/p>\n

\u201cThe rapid tests play an important role and can be very valuable in some cases. For instance, a patient who needs trauma surgery can\u2019t wait a day or two for test results because the physicians need to know the results before performing a life-saving, emergency procedure. Many hospitals are using rapid tests for this purpose.<\/p>\n

\u201cAnother example is screening people before an event \u2014 or possibly using it before going to school \u2014 theoretically a rapid test would be valuable in those contexts, although this application of rapid tests is not common,\u201d\u00a0Humphries added.<\/p>\n

The microbiologist cautioned that no test is perfect and each has its limitations.<\/p>\n

\u201cOne factor that affects every COVID test is getting a really good sample. To collect a proper nasal pharyngeal sample the tester needs to get back enough in the nose to cause a gag reflex because that is where the coronavirus is. They need to go in deep. Basically, the chances for a more accurate test result increase with a better sample,\u201d she noted.\n <\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n

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“#Are coronavirus rapid tests really accurate? Experts weigh in” August 18, 2020 | 1:33pm | Updated August 18, 2020 | 1:33pm Waiting for a coronavirus test result can vary from less than an hour to up to a week, depending on the type of COVID-19 test you take. Many people choose the rapid test to…<\/p>\n","protected":false},"author":1,"featured_media":49079,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[55150],"class_list":["post-49078","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-are-coronavirus-rapid-tests-really-accurate-experts-weigh-in"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/49078","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=49078"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/49078\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/49079"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=49078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=49078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=49078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}