{"id":43333,"date":"2022-03-08T11:22:16","date_gmt":"2022-03-08T03:22:16","guid":{"rendered":"https:\/\/www.therfiles.com\/?p=43333"},"modified":"2022-03-08T15:00:37","modified_gmt":"2022-03-08T07:00:37","slug":"comparing-type-of-covid-19-tests","status":"publish","type":"post","link":"https:\/\/www.therfiles.com\/comparing-type-of-covid-19-tests\/","title":{"rendered":"Comparing Type of Covid-19 Tests &#8211; RT-PCR and RTK-Ag"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"43333\" class=\"elementor elementor-43333\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-71ed85b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"71ed85b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e6747ef\" data-id=\"e6747ef\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-df96149 elementor-widget elementor-widget-text-editor\" data-id=\"df96149\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h4><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"0\" data-number-of-phrases=\"10\">When will your RTK-Ag and RT-PCR rapid tests show a positive result if you are infected with the COVID-19 virus?<\/span> <\/span><\/h4><p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"2\" data-number-of-phrases=\"10\">The RTK-Ag test can usually detect infection on day 3 to 7 after a person is exposed to COVID-19 patients, while the RT-PCR test can detect infection as early as day 2 to 14 after infection.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"4\" data-number-of-phrases=\"10\">Therefore, the accuracy of RTK-Ag and RT-PCR tests is dependent on the duration of infection at the time the sample was taken.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"6\" data-number-of-phrases=\"10\">The use of the RTK-Ag test is recommended for individuals who are symptomatic or are in a high-risk group if asymptomatic.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"7\" data-number-of-phrases=\"10\">MOH has approved the use of RTK-Ag as an alternative method of testing COVID-19 other than RT-PCR.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"ms\" data-phrase-index=\"9\" data-number-of-phrases=\"10\">However, RT-PCR testing is still the gold standard for detecting COVID-19 infection.<\/span><\/span><\/p><br \/><h3>RTK-Ag (Rapid Test Kit-Antigen)<\/h3><ul><li>Not as accurate compared to RT-PCR test. It is for screening and not the diagnosis of Covid-19.<\/li><li>Test can be performed by yourself at the comfort of your own home or by a trained practitioner.<\/li><li>Results can be obtained very fast, after about 15 minutes.<\/li><li>Test kits are not expensive, they can cost as low as below RM5.<\/li><\/ul><p><strong>Cassette type <\/strong>&#8211; More steps compared to Lolly test type. Straight forward, reliable if there is enough viral load.<\/p><p><strong>Lolly test type <\/strong>&#8211; Easy, single test device. Takes longer time to collect enough saliva sample. If you take too long to collect your sample, the test may become invalid.<\/p><p><iframe loading=\"lazy\" title=\"Covid Self Test Kit - Ujian Jenis Kaset vs Lolly\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/JA3ILuB0uQo?start=1&feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p><h3><strong>The polymerase chain reaction (PCR)<\/strong>\u00a0<\/h3><p>Amplifies small amounts of RNA from specimens into deoxyribonucleic acid (DNA), which is replicated until SARS-CoV-2, the virus that causes Covid-19, is detectable if present.<\/p><ul><li>More accurate compared to RTK-Ag and is a diagnostic test.<\/li><li>Cannot be done at home yourself. The test is to be performed and analyzed by professionally trained personnel.<\/li><li>It usually takes about 24 hours to get the result<\/li><li>More expensive, from about RM200<\/li><\/ul><p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-43357 size-large\" src=\"https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-1024x397.png\" alt=\"rt-pcr amplification test covid-19\" width=\"1024\" height=\"397\" srcset=\"https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-1024x397.png 1024w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-300x116.png 300w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-768x298.png 768w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-1536x596.png 1536w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr-600x233.png 600w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/rt_amplification-pcr.png 1871w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p><p style=\"text-align: center;\">RT-PCR technology to amplify small amounts of RNA. Photo: iaea.org<\/p><br \/><p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-43339 size-full\" src=\"https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load.jpg\" alt=\"viral load rtk pcr test \" width=\"843\" height=\"843\" srcset=\"https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load.jpg 843w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-300x300.jpg 300w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-150x150.jpg 150w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-768x768.jpg 768w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-600x600.jpg 600w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-100x100.jpg 100w, https:\/\/www.therfiles.com\/wp-content\/uploads\/2022\/03\/viral-load-120x120.jpg 120w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/><\/p><br \/><h4>Bilakah ujian pantas RTK-Ag dan RT-PCR anda akan menunjukkan keputusan positif sekiranya anda dijangkiti virus COVID-19?<\/h4><p>Ujian RTK-Ag biasanya boleh mengesan jangkitan pada hari ke-3 hingga hari ke-7 selepas seseorang terdedah kepada pesakit COVID-19, manakala ujian RT-PCR boleh mengesan jangkitan seawal hari ke-2 hingga hari ke-14 selepas dijangkiti.<br \/>Justeru itu, ketepatan ujian RTK-Ag dan RT-PCR adalah bergantung kepada tempoh jangkitan sewaktu sampel diambil.<\/p><p><br \/><br \/>Penggunaan ujian RTK-Ag adalah disarankan kepada individu bergejala atau berada dalam kumpulan berisiko tinggi sekiranya tidak bergejala. KKM telah meluluskan penggunaan RTK-Ag sebagai suatu kaedah alternatif pengujian COVID-19 selain RT-PCR. Namun, ujian RT-PCR masih merupakan gold standard bagi mengesan jangkitan COVID-19.<\/p><br \/><h3>Source<\/h3><p><a href=\"https:\/\/www.facebook.com\/kementeriankesihatanmalaysia\/posts\/331032842392059\" target=\"_blank\" rel=\"noopener\">KKM Facebook<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>When will your RTK-Ag and RT-PCR rapid tests show a positive result if you are infected with the COVID-19 virus? The RTK-Ag test can usually detect infection on day 3 to 7 after a person is exposed to COVID-19 patients, while the RT-PCR test can detect infection as early as day 2 to 14 after [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":43339,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[478],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comparing Type of Covid-19 Tests - RT-PCR and RTK-Ag - The Research Files<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.therfiles.com\/comparing-type-of-covid-19-tests\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comparing Type of Covid-19 Tests - RT-PCR and RTK-Ag - The Research Files\" \/>\n<meta property=\"og:description\" content=\"When will your RTK-Ag and RT-PCR rapid tests show a positive result if you are infected with the COVID-19 virus? 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