{"id":27149,"date":"2020-06-09T18:40:52","date_gmt":"2020-06-09T13:10:52","guid":{"rendered":"https:\/\/kashmir.today\/false-negative-results-are-occurring-because-healthcare-providers-arent-collecting-samples-with-enough-of-virus-dak\/"},"modified":"2020-06-09T18:40:52","modified_gmt":"2020-06-09T13:10:52","slug":"false-negative-results-are-occurring-because-healthcare-providers-arent-collecting-samples-with-enough-of-virus-dak","status":"publish","type":"post","link":"https:\/\/kashmir.watch\/?p=27149","title":{"rendered":"False negative results are occurring because healthcare providers aren\u2019t collecting samples with enough of virus: DAK"},"content":{"rendered":"\n<p><strong>Srinagar:<\/strong> Doctors Association Kashmir (DAK) on Tuesday said one in three patients infected with the novel coronavirus receive false negative test results.<br \/><\/p>\n\n\n\n<p>\u201cA negative test does not exclude the possibility of Covid-19 infection,\u201d said DAK President Dr Nisar ul Hassan.<br \/>\u201cRT-PCR test is the most common diagnostic test used to identify people currently infected with Covid infection. It works by detecting the virus from nasal or throat swabs of patients,\u201d he said.<br \/><\/p>\n\n\n\n<p>Dr Nisar said the clinical sensitivity of PCR test ranges from 66% to 80%. That means more than 30 percent of positive cases may be missed by the test.<br \/><\/p>\n\n\n\n<p>\u201cInappropriate sample collection is the main culprit behind inaccurate testing,\u201d he said.<br \/><\/p>\n\n\n\n<p>Dr Nisar false negative results are occurring because healthcare providers aren\u2019t collecting samples with enough of virus. This can happen because they don\u2019t insert a swab deep enough in the nose or don\u2019t collect enough of the sample.<br \/><\/p>\n\n\n\n<p>\u201cFalse negative can also occur if persons are testing too early or too late during their infection and there isn\u2019t lot of virus in their cells,\u201d he said.<br \/>\u201cAnd, errors can happen if a sample sits too long before being tested which allows the virus to break down,\u201d he added.<br \/><\/p>\n\n\n\n<p>Dr Nisar said another issue related to PCR test is \u201cfalse positive result\u201d.<br \/>\u201cThat means people who are uninfected receive positive results for Covid,\u201d he said.<br \/><\/p>\n\n\n\n<p>Dr Nisar said the false positive result can be due to contamination either from a positive sample analyzed in the lab at the same time (cross contamination) or more likely from genes amplified from prior positive samples or positive controls (carryover contamination). False positives can also be produced by sample mix-ups or data entry errors.<br \/>\u201cFalse positive results lead to unnecessary sequestration of uninfected individuals and waste of human resources in contact tracing,\u201d he said.<br \/><\/p>\n\n\n\n<p>\u201cIt is important to mention that if the test is not perfect, it does not mean it is not useful.<br \/><\/p>\n\n\n\n<p>Proper sample procedures, good lab practice standard and using high quality PCR kits could reduce inaccurate results,\u201d said Dr Nisar.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Srinagar: Doctors Association Kashmir (DAK) on Tuesday said one in three patients infected with the novel coronavirus receive false negative test results. \u201cA negative test does not exclude the possibility of Covid-19 infection,\u201d said DAK President Dr Nisar ul Hassan.\u201cRT-PCR test is the most common diagnostic test used to identify people currently infected with Covid [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":25312,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-27149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-union-territory"],"_links":{"self":[{"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/wp\/v2\/posts\/27149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kashmir.watch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27149"}],"version-history":[{"count":0,"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/wp\/v2\/posts\/27149\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kashmir.watch\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"https:\/\/kashmir.watch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kashmir.watch\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kashmir.watch\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}