Upon performing a routine venipuncture, the vein of the patient collapses. Which of the following could be the cause?
Using a 25-gauge winged infusion set
Inserting a micro evacuated tube
Applying the blood pressure cuff to 40 mmHg
Applying the tourniquet too tightly<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is Applying the tourniquet too tightly<\/strong>.<\/p>\n\n\n\n A venipuncture is the process of inserting a needle into a vein, typically to draw blood. If a vein collapses during this process, it usually means that the vein has been constricted or damaged. Several factors can lead to a vein collapsing:<\/p>\n\n\n\n In summary, the main issue in this scenario is the tourniquet. If it is applied too tightly, it can lead to vein collapse by restricting blood flow, weakening the vein structure, and causing the vein to become more fragile when a needle is inserted.<\/p>\n","protected":false},"excerpt":{"rendered":" Upon performing a routine venipuncture, the vein of the patient collapses. Which of the following could be the cause?Using a 25-gauge winged infusion setInserting a micro evacuated tubeApplying the blood pressure cuff to 40 mmHgApplying the tourniquet too tightly The correct answer and explanation is: The correct answer is Applying the tourniquet too tightly. Explanation: […]<\/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-271914","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/271914","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=271914"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/271914\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=271914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=271914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=271914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
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When a tourniquet is applied too tightly, it restricts blood flow into the vein, causing it to become engorged. However, the pressure can also make the vein more fragile and prone to collapsing when the needle is inserted. If the tourniquet is left on for too long or applied too tightly, it can cause the veins to become less resilient and more likely to collapse during venipuncture.<\/li>\n\n\n\n
A 25-gauge needle is smaller and generally causes less trauma to the vein compared to larger needles. While it might make the process more difficult, it is not a direct cause of vein collapse. A winged infusion set (butterfly needle) can be beneficial for smaller veins, but it\u2019s not a typical cause of collapse unless the vein is already weakened or fragile.<\/li>\n\n\n\n
Micro evacuated tubes are designed for smaller blood draws and should not cause a vein collapse, provided the vein is in good condition. The tube’s vacuum is generally gentle enough not to harm the vein.<\/li>\n\n\n\n
A blood pressure cuff inflated to 40 mmHg generally helps in locating veins but is not typically strong enough to cause vein collapse. The pressure exerted by a blood pressure cuff is much lower than that of an overly tight tourniquet.<\/li>\n<\/ol>\n\n\n\n