{"id":141107,"date":"2024-09-20T10:17:29","date_gmt":"2024-09-20T10:17:29","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=141107"},"modified":"2024-09-20T10:17:31","modified_gmt":"2024-09-20T10:17:31","slug":"the-nurse-attaches-a-pulse-oximeter-to-a-clients-finger-and-obtains-an-oxygen-saturation-reading-of-91","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/20\/the-nurse-attaches-a-pulse-oximeter-to-a-clients-finger-and-obtains-an-oxygen-saturation-reading-of-91\/","title":{"rendered":"The nurse attaches a pulse oximeter to a client&#8217;s finger and obtains an oxygen saturation reading of 91%"},"content":{"rendered":"\n<p>The nurse attaches a pulse oximeter to a client&#8217;s finger and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?<\/p>\n\n\n\n<p>A.<br>Blood pressure is 142\/88 mm Hg.<\/p>\n\n\n\n<p>B.<br>Radial pulse volume is 3+.<\/p>\n\n\n\n<p>C.<br>2+ edema of fingers and hands.<\/p>\n\n\n\n<p>D.<br>Capillary refill time is 2 seconds.<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is <strong>C. 2+ edema of fingers and hands<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>A pulse oximeter is a non-invasive device used to measure oxygen saturation (SpO2) in the blood. It works by emitting light waves through the skin and detecting how much light is absorbed by oxygenated and deoxygenated hemoglobin in the blood. The accuracy of pulse oximetry readings can be affected by various factors, such as poor peripheral circulation, the presence of nail polish, skin temperature, and conditions that interfere with blood flow.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Contribution of 2+ Edema:<\/h4>\n\n\n\n<p>In this scenario, the client&#8217;s oxygen saturation reading is 91%, which is slightly below normal (typically, a healthy SpO2 reading is between 95-100%). The presence of <strong>2+ edema of the fingers and hands<\/strong> suggests that the tissues in these areas are swollen due to fluid retention. Edema can impair the transmission of light from the pulse oximeter because it causes tissue swelling and can hinder capillary blood flow. This reduced blood flow may result in an inaccurate or artificially low reading of oxygen saturation, contributing to the lower-than-expected SpO2 of 91%.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Explanation of Other Options:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. Blood pressure is 142\/88 mm Hg<\/strong>: While this blood pressure reading is elevated (hypertension), it does not directly affect oxygen saturation. Blood pressure and oxygen saturation are related to different physiological systems.<\/li>\n\n\n\n<li><strong>B. Radial pulse volume is 3+<\/strong>: This indicates a strong radial pulse and good peripheral circulation, which is unlikely to cause a low oxygen saturation reading.<\/li>\n\n\n\n<li><strong>D. Capillary refill time is 2 seconds<\/strong>: This is a normal finding (capillary refill of less than 2 seconds indicates adequate peripheral perfusion), so it would not contribute to a decreased oxygen saturation.<\/li>\n<\/ul>\n\n\n\n<p>In summary, the 2+ edema is the most likely factor contributing to the slightly low oxygen saturation, as it can reduce blood flow and light transmission, leading to inaccurate readings.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The nurse attaches a pulse oximeter to a client&#8217;s finger and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading? A.Blood pressure is 142\/88 mm Hg. B.Radial pulse volume is 3+. C.2+ edema of fingers and hands. D.Capillary refill time is 2 seconds. The correct answer and Explanation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-141107","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/141107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=141107"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/141107\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=141107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=141107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=141107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}