{"id":204818,"date":"2025-03-22T15:30:12","date_gmt":"2025-03-22T15:30:12","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=204818"},"modified":"2025-03-22T15:30:14","modified_gmt":"2025-03-22T15:30:14","slug":"clostridium-difficile-associated-diarrhea-is-usually-preceded-by-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/22\/clostridium-difficile-associated-diarrhea-is-usually-preceded-by-2\/","title":{"rendered":"Clostridium difficile-associated diarrhea is usually preceded by"},"content":{"rendered":"\n

Clostridium difficile-associated diarrhea is usually preceded by<\/p>\n\n\n\n

Group of answer choices<\/p>\n\n\n\n

A) Eating contaminated food.<\/p>\n\n\n\n

B) A blood transfusion.<\/p>\n\n\n\n

C) Use of broad-spectrum antibiotics.<\/p>\n\n\n\n

D) Improper food storage.<\/p>\n\n\n\n

E) Travel to an underdeveloped country.<\/p>\n\n\n\n

The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n

The correct answer is:<\/p>\n\n\n\n

C) Use of broad-spectrum antibiotics.<\/strong><\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

Clostridium difficile-associated diarrhea (CDAD) is a severe form of antibiotic-associated diarrhea caused by the bacterium Clostridium difficile<\/em> (C. difficile<\/em>). This condition is most commonly preceded by the use of broad-spectrum antibiotics<\/strong>, which disrupt the normal gut microbiota, allowing C. difficile<\/em> to overgrow and produce toxins that cause inflammation and diarrhea.<\/p>\n\n\n\n

How Antibiotics Lead to CDAD:<\/h3>\n\n\n\n
    \n
  1. Disruption of Normal Gut Flora:<\/strong> The human intestines contain a diverse microbiome that helps maintain balance and prevents harmful bacteria from overgrowing. Broad-spectrum antibiotics such as clindamycin, fluoroquinolones, cephalosporins, and penicillins kill both beneficial and harmful bacteria, reducing microbial diversity.<\/li>\n\n\n\n
  2. Overgrowth of C. difficile<\/em><\/strong>: C. difficile<\/em> is naturally present in the intestines of some people but is usually kept in check by other bacteria. When antibiotics kill competing bacteria, C. difficile<\/em> can proliferate.<\/li>\n\n\n\n
  3. Toxin Production:<\/strong> C. difficile<\/em> produces toxins Toxin A and Toxin B<\/strong>, which damage the intestinal lining, leading to diarrhea, colitis, and, in severe cases, pseudomembranous colitis.<\/li>\n\n\n\n
  4. Transmission and Recurrence:<\/strong> C. difficile<\/em> spores are highly resistant and can spread through contaminated surfaces and hands, leading to reinfection or transmission in healthcare settings.<\/li>\n<\/ol>\n\n\n\n

    Why Other Options Are Incorrect:<\/h3>\n\n\n\n
      \n
    • (A) Eating contaminated food<\/strong>: While foodborne illnesses can cause diarrhea, C. difficile<\/em> infection is primarily linked to antibiotic use, not food contamination.<\/li>\n\n\n\n
    • (B) A blood transfusion<\/strong>: No evidence suggests a link between blood transfusions and C. difficile<\/em> infection.<\/li>\n\n\n\n
    • (D) Improper food storage<\/strong>: This may lead to bacterial food poisoning but not specifically C. difficile<\/em> infection.<\/li>\n\n\n\n
    • (E) Travel to an underdeveloped country<\/strong>: Traveler\u2019s diarrhea is usually caused by E. coli<\/em>, Salmonella<\/em>, or Shigella<\/em>, not C. difficile<\/em>.<\/li>\n<\/ul>\n\n\n\n

      Thus, the primary risk factor for C. difficile<\/em>-associated diarrhea is prior broad-spectrum antibiotic use<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Clostridium difficile-associated diarrhea is usually preceded by Group of answer choices A) Eating contaminated food. B) A blood transfusion. C) Use of broad-spectrum antibiotics. D) Improper food storage. E) Travel to an underdeveloped country. The correct answer and explanation is : The correct answer is: C) Use of broad-spectrum antibiotics. Explanation: Clostridium difficile-associated diarrhea (CDAD) […]<\/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-204818","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204818","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=204818"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204818\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=204818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=204818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=204818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}