{"id":13060,"date":"2024-04-22T23:19:34","date_gmt":"2024-04-22T23:19:34","guid":{"rendered":"https:\/\/www.drknowhk.org\/?p=13060"},"modified":"2024-07-04T23:23:59","modified_gmt":"2024-07-04T23:23:59","slug":"crc-screening-in-primary-care-the-blood-test-option","status":"publish","type":"post","link":"http:\/\/www.drknowhk.org\/mo\/crc-screening-in-primary-care-the-blood-test-option\/","title":{"rendered":"CRC Screening in Primary Care: The Blood Test Option"},"content":{"rendered":"<p class=\"qtranxs-available-languages-message qtranxs-available-languages-message-mo\">\u5c0d\u4e0d\u8d77\uff0c\u6b64\u5185\u5bb9\u53ea\u9069\u7528\u65bc<a href=\"http:\/\/www.drknowhk.org\/en\/wp-json\/wp\/v2\/posts\/13060\" class=\"qtranxs-available-language-link qtranxs-available-language-link-en\" title=\"English\">English<\/a>\u3002<\/p><p>By Kenneth W. Lin<\/p>\n<p>Source Medscape<\/p>\n<p>Hi, everyone. I&#8217;m Dr Kenny Lin. I am a family physician and associate director of the Lancaster General Hospital Family Medicine Residency, and I blog at\u00a0<em>Common Sense Family Doctor<\/em>.<\/p>\n<p>Last year, I concluded a\u00a0Medscape commentary\u00a0on\u00a0colorectal cancer\u00a0(CRC) screening guidelines by stating that between stool-based tests,\u00a0flexible sigmoidoscopy, and\u00a0colonoscopy, &#8220;the best screening test is the test that gets done.&#8221; But should that maxim apply to the new blood-based screening test, Guardant Health Shield? This proprietary test, which costs $895 and is not generally covered by insurance,\u00a0identifies alterations in cell-free DNA that are characteristic of CRC.<\/p>\n<p>Shield&#8217;s test characteristics were recently evaluated in a\u00a0prospective study\u00a0of more than 10,000 adults aged 45-84 at average risk for CRC. The test had an 87.5% sensitivity for stage I, II, or III colorectal cancer but only a 13% sensitivity for advanced precancerous lesions. Test specificity was 89.6%, meaning that about 1 in 10 participants without CRC or advanced precancerous lesions on colonoscopy had a false-positive result.<\/p>\n<p>Read more <a href=\"https:\/\/www.medscape.com\/viewarticle\/crc-screening-primary-care-blood-test-option-2024a10007gf\">https:\/\/www.medscape.com\/viewarticle\/crc-screening-primary-care-blood-test-option-2024a10007gf<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5c0d\u4e0d\u8d77\uff0c\u6b64\u5185\u5bb9\u53ea\u9069\u7528\u65bcEnglish\u3002By Kenneth W. Lin Source Medscape Hi, everyone. I&#8217;m Dr Kenny Lin. I am a family physician and associate director of the Lancaster General Hospital Family Medicine Residency, and I blog at\u00a0Common Sense Family Doctor. Last year, I concluded a\u00a0Medscape commentary\u00a0on\u00a0colorectal cancer\u00a0(CRC) screening guidelines by stating that between stool-based tests,\u00a0flexible sigmoidoscopy, and\u00a0colonoscopy, &#8220;the best screening [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13061,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-13060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-primary-healthcare-1"],"_links":{"self":[{"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/posts\/13060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/comments?post=13060"}],"version-history":[{"count":1,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/posts\/13060\/revisions"}],"predecessor-version":[{"id":13062,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/posts\/13060\/revisions\/13062"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/media\/13061"}],"wp:attachment":[{"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/media?parent=13060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/categories?post=13060"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.drknowhk.org\/mo\/wp-json\/wp\/v2\/tags?post=13060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}