{"id":1371,"date":"2025-07-25T20:17:07","date_gmt":"2025-07-25T20:17:07","guid":{"rendered":"https:\/\/studenthub.elsevier.com\/en\/?p=1371"},"modified":"2025-08-07T18:24:35","modified_gmt":"2025-08-07T18:24:35","slug":"mycobacterium-tuberculosis","status":"publish","type":"post","link":"https:\/\/studenthub.elsevier.com\/en\/question-bank\/mycobacterium-tuberculosis\/","title":{"rendered":"A 27-year-old male presents with a 3-month history of cough, night sweats and weight loss of 5 kg. He was previously fit and well. He went on holiday with his family 4 months ago to Pakistan where his grandfather also had a cough. On examination:\u00a0 Febrile 37.9; all other observations stable. CXR: bilateral hilar lymphadenopathy. Microbiology: on Ziehl-Neelsen staining of sputum, acid-fast bacilli seen. \u00a0He is diagnosed as having pulmonary tuberculosis. Which of the following are characteristics of Mycobacterium tuberculosis?"},"content":{"rendered":"\n        <div class=\"simple-quiz\" id=\"sqt_1_1343_container\">\n            \n            <div class=\"quiz-options\">\n                                    <div class=\"quiz-option\">\n                        <input type=\"radio\" \n                               id=\"sqt_1_1343_option_1\" \n                               name=\"sqt_1_1343_options\" \n                               value=\"1\">\n                        <label for=\"sqt_1_1343_option_1\">\n                            A. Gram positive bacterium (purplish colour) on Gram staining                        <\/label>\n                    <\/div>\n                                    <div class=\"quiz-option\">\n                        <input type=\"radio\" \n                               id=\"sqt_1_1343_option_2\" \n                               name=\"sqt_1_1343_options\" \n                               value=\"2\">\n                        <label for=\"sqt_1_1343_option_2\">\n                            B. Causes a type 1 hypersensitivity reaction                        <\/label>\n                    <\/div>\n                                    <div class=\"quiz-option\">\n                        <input type=\"radio\" \n                               id=\"sqt_1_1343_option_3\" \n                               name=\"sqt_1_1343_options\" \n                               value=\"3\">\n                        <label for=\"sqt_1_1343_option_3\">\n                            C. M. tuberculosis is destroyed by cellular defence mechanisms                        <\/label>\n                    <\/div>\n                                    <div class=\"quiz-option\">\n                        <input type=\"radio\" \n                               id=\"sqt_1_1343_option_4\" \n                               name=\"sqt_1_1343_options\" \n                               value=\"4\">\n                        <label for=\"sqt_1_1343_option_4\">\n                            D. Lesions heal by granulomata                        <\/label>\n                    <\/div>\n                                    <div class=\"quiz-option\">\n                        <input type=\"radio\" \n                               id=\"sqt_1_1343_option_5\" \n                               name=\"sqt_1_1343_options\" \n                               value=\"5\">\n                        <label for=\"sqt_1_1343_option_5\">\n                            E. Are flagellated                        <\/label>\n                    <\/div>\n                            <\/div>\n            \n            <div class=\"quiz-toggle\">\n                <span class=\"quiz-cta\" \n                      role=\"button\" \n                      tabindex=\"0\" \n                      onclick=\"simpleQuizToggleResults('sqt_1_1343')\"\n                      onkeydown=\"if(event.key === 'Enter' || event.key === ' ') { simpleQuizToggleResults('sqt_1_1343'); event.preventDefault(); }\">\n                    Reveal the answer                <\/span>\n                \n                <div id=\"sqt_1_1343_results\" class=\"quiz-results\" aria-live=\"polite\">\n                    D. Lesions heal by granulomata                <\/div>\n            <\/div>\n            \n        <\/div>\n        \n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":165,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"wp-custom-template-question-bank-individual-entry","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[18,11],"tags":[],"class_list":["post-1371","post","type-post","status-publish","format-standard","hentry","category-physiology","category-question-bank"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A 27-year-old male presents with a 3-month history of cough, night sweats and weight loss of 5 kg. He was previously fit and well. He went on holiday with his family 4 months ago to Pakistan where his grandfather also had a cough. On examination:\u00a0 Febrile 37.9; all other observations stable. CXR: bilateral hilar lymphadenopathy. Microbiology: on Ziehl-Neelsen staining of sputum, acid-fast bacilli seen. \u00a0He is diagnosed as having pulmonary tuberculosis. Which of the following are characteristics of Mycobacterium tuberculosis? - Student Hub EN<\/title>\n<meta name=\"description\" content=\"Boost your physiology knowledge with our sample question on mycobacterium tuberculosis. Test yourself with our practice question bank!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/studenthub.elsevier.com\/en\/question-bank\/mycobacterium-tuberculosis\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A 27-year-old male presents with a 3-month history of cough, night sweats and weight loss of 5 kg. 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