{"id":8745,"date":"2021-11-19T10:34:27","date_gmt":"2021-11-19T09:34:27","guid":{"rendered":"https:\/\/www.physiotutors.com\/?post_type=wiki&amp;p=8745"},"modified":"2021-11-19T10:34:27","modified_gmt":"2021-11-19T09:34:27","slug":"allen-test","status":"publish","type":"wiki","link":"https:\/\/www.physiotutors.com\/wiki\/allen-test\/","title":{"rendered":"Allen Test"},"featured_media":8746,"template":"","class_list":["post-8745","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"sections":[{"acf_fc_layout":"page-header-detail-page","background":{"background_image":8746,"background_image_alt_text":"Allen Test"},"heading":"Allen Test | Hand Vascularization  | Radial & Ulnar Artery Assessment","subheading":"Wrist & Hand Assessment","content_editor":"","button_type":"internal_link","button_label":"Check our shop","button_style":"button-five","button_internal_link":4646,"button_anchor":"","button_url":"","button_file":"","label":""},{"acf_fc_layout":"submenu","links":[{"button_type":"anchor","button_label":"Learn","button_internal_link":null,"button_anchor":"section-number-3","button_url":"","button_file":null},{"button_type":"anchor","button_label":"Assessment E-Book","button_internal_link":null,"button_anchor":"section-number-4","button_url":"","button_file":null},{"button_type":"anchor","button_label":"Reviews","button_internal_link":null,"button_anchor":"section-number-5","button_url":"","button_file":null}],"dropdown_label":"Go to","button_right":{"button_type":"internal_link","button_label":"Become a member","button_style":"button-three","button_internal_link":16662,"button_anchor":"","button_url":"","button_file":""},"button_description":"Find this wiki on the Physiotutors platform"},{"acf_fc_layout":"content-content","section_options":{"vertical_alignment":"top","column_right_box":false,"column_left_width":"col-12 col-lg-4 offset"},"column_left":{"content_editor":"<h4>Learn<\/h4>"},"column_right":{"content_editor":"<h6>Allen Test | Hand Vascularization | Radial &amp; Ulnar Artery Assessment<\/h2>\nThe Allen Test assesses for blood circulation in the hand. Jarvis et al. (2000) have evaluated Allen's Test accuracy to distinguish between healthy and impaired arteries in order to select the radial artery for coronary bypass surgery. They found the following sensitivity and specificity values for different cut-off times:\n<ul>\n \t<li>6 seconds: 54,5% sensitivity and 91,7% specificity<\/li>\n \t<li>5 seconds: 79,6% sensitivity and 75,8% specificity<\/li>\n \t<li>3 seconds: 100% sensitivity and 27% specificity<\/li>\n<\/ul>\nThey concluded that at no cut-off point, the Allen test performed satisfactorily as a discriminatory test and that a Doppler ultrasound device should be used instead.\n<div class=\"embed-container\">\n\n[embed]https:\/\/www.youtube.com\/watch?v=D1tJO0RW9UM[\/embed]\n\n<\/div>\nTo conduct the test, ask your patient to open and close the hand several times as quickly as possible and then squeeze the hand tightly then compress the radial and the ulnar arteries with your thumbs. Hold it quickly and then ask your patient to open the hand and release the radial artery and you can see how the blood is streaming back into the hand quickly.\n\nWe will now repeat the same process and release the ulnar artery. This test determines the patency of the ulnar and radial arteries. With a healthy artery, the blood should stream back into the hand quickly indicated by the red color.\n\nMake sure to always compare both hands to determine if an artery is impaired.\n\nAnother common test to assess digital blood flow is the <a href=\"https:\/\/www.physiotutors.com\/wiki\/digital-blood-flow-test\/\">digital blood flow test<\/a>.\n\n[cta]\n\n&nbsp;\n"}},{"acf_fc_layout":"content-content","section_options":{"vertical_alignment":"top","column_right_box":false,"column_left_width":"col-12 col-lg-4 offset"},"column_left":{"content_editor":"<h4>References<\/h4>"},"column_right":{"content_editor":"<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/11081899\/\" target=\"_blank\" rel=\"noopener\">Jarvis MA, Jarvis CL, Jones PR, Spyt TJ. Reliability of Allen\u2019s test in selection of patients for radial artery harvest. The Annals of thoracic surgery. 2000 Oct 1;70(4):1362-5.<\/a>"}},{"acf_fc_layout":"cta-image-v2","layout":"","background":"transparent","heading":"","content_editor":"<p class=\"subheading\">Like what you\u2019re learning?<\/p>\n<p class=\"heading-two\">BUY THE FULL PHYSIOTUTORS <strong>ASSESSMENT BOOK<\/strong><\/p>\n\n<ul>\n \t<li>600+ Pages e-Book<\/li>\n \t<li>Interactive Content (Direct Video Demonstration, PubMed articles)<\/li>\n \t<li>Statistical Values for all Special Tests from the latest research<\/li>\n \t<li>Available in \ud83c\uddec\ud83c\udde7 \ud83c\udde9\ud83c\uddea \ud83c\uddeb\ud83c\uddf7 \ud83c\uddea\ud83c\uddf8 \ud83c\uddee\ud83c\uddf9 \ud83c\uddf5\ud83c\uddf9 \ud83c\uddf9\ud83c\uddf7<\/li>\n \t<li>And much more!<\/li>\n<\/ul>","button_type":"internal_link","button_label":"Check out our shop","button_style":"button-two","button_internal_link":4464,"button_anchor":"","button_url":"","button_file":null,"side_button":{"side_button_content_editor":""},"bottom_button":{"bottom_button_content_editor":""},"image":22705,"image_alt_text":""},{"acf_fc_layout":"review-slider","heading":"WHAT CUSTOMERS HAVE TO SAY ABOUT THE ASSESSMENT E-BOOK","image_shortcode":"","image":"","image_alt_text":"","shortcode":"[wprevpro_usetemplate tid=\"2\"]","button_type":"internal_link","button_label":"","button_style":"button-one","button_internal_link":"","button_anchor":"","button_url":"","button_file":null},{"acf_fc_layout":"cta-full-width-v2","logo":{"logo_image":22443,"logo_image_alt_text":""},"heading":"<strong>Download<\/strong> the free Physiotutors app now!","content_editor":"","download_image":{"download_image_image":22444,"download_image_image_alt_text":""},"mobile_download_image":{"mobile_download_image_image":22445,"mobile_download_image_image_alt_text":""},"download_image_link":"https:\/\/onelink.to\/6dtzk5","mockup_image":{"mockup_image_image":22447,"mockup_image_image_alt_text":""},"mobile_mockup_image":{"mobile_mockup_image_image":22446,"mobile_mockup_image_image_alt_text":""}}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Allen Test | Hand Vascularization | Radial &amp; Ulnar Artery Exam<\/title>\n<meta name=\"description\" content=\"The Allen Test is a test to assess the vascularization of the hand. 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