KMU Past Paper Practice

A 64-year-old man develops generalized abdominal distension two days after major abdominal surgery. He has nausea, markedly reduced bowel sounds and no focal tenderness. CT shows diffuse dilatation of both small and large bowel without a transition point. Which process best explains his presentation?

A 52-year-old man presents with colicky abdominal pain, vomiting and increasing distension. He has never undergone abdominal surgery. During examination, the clinician wants to identify a potentially correctable external cause of the obstruction. Which additional examination is most important?

A patient presents with colicky abdominal pain, vomiting and abdominal distension. A plain abdominal radiograph is obtained while further assessment is arranged. Which finding would most strongly support intestinal obstruction?

A 48-year-old woman presents early in the course of mechanical small-bowel obstruction. Auscultation reveals frequent high-pitched bowel sounds. Which physiological response most directly produces this finding?

A patient with suspected intestinal obstruction initially passes a small amount of stool but later becomes unable to pass either stool or flatus while abdominal distension increases. What is the best interpretation of this progression?

A 72-year-old man with long-standing peripheral arterial disease develops acute abdominal symptoms. Imaging demonstrates occlusion of a diseased mesenteric artery at a site of marked pre-existing narrowing rather than an embolus lodged in a previously normal vessel. Which vascular event is most likely?

Histological examination of ischemic small bowel shows necrosis involving the mucosa and deeper layers of the bowel wall, but viable tissue remains in the outermost portion and full-thickness necrosis is absent. Which pattern of infarction is present?

A patient with severe intestinal ischemia develops systemic infection even though no gross bowel perforation is identified. The mucosa is extensively damaged. Which mechanism best explains this complication?

A bowel specimen is examined early after a significant ischemic episode. The pathologist is looking for microscopic evidence of acute hypoxic mucosal injury before full-thickness necrosis develops. Which finding is most consistent with this stage?

A 24-year-old man undergoes surgery for acute appendicitis. The appendix is distended, and a firm mass of inspissated fecal material is found blocking its lumen. Which initiating factor is demonstrated?

A 21-year-old man has a clinical picture suggestive of appendicitis, but anterior right lower-quadrant tenderness is less prominent than expected. His pain is felt more posteriorly and laterally. Which anatomical position of the appendix best explains this presentation?

A patient with right lower-quadrant pain has localized tenderness and a clinical picture suspicious for appendicitis. Urinalysis shows a small number of inflammatory cells, but there are no dominant urinary symptoms. How should this result be interpreted?

A 42-year-old man presents with persistent right lower abdominal pain and inflammatory features, but the examination is atypical and several abdominal diagnoses remain possible. Which investigation is most useful for assessing the appendix while also looking for an alternative intra-abdominal cause?

A 68-year-old man presents with his first episode of acute appendicitis. He improves after appropriate treatment. Compared with a much younger patient, which additional consideration is particularly relevant when evaluating the cause of luminal obstruction?

A 23-year-old patient with suspected appendicitis is awaiting definitive imaging and surgical review. He has significant abdominal pain but is hemodynamically stable. Which approach to pain management is most appropriate during the diagnostic process?

A patient with pulmonary tuberculosis later develops ileocecal intestinal involvement. One possible route allows organisms from infected respiratory secretions to reach the gastrointestinal tract directly. Which route best explains this mechanism?

A 36-year-old man has chronic abdominal pain, weight loss and ileocecal wall thickening on CT. Intestinal tuberculosis is suspected, but tissue confirmation is required. Which investigation provides the most direct opportunity to inspect the mucosa and obtain diagnostic tissue?

A patient has chronic ileocecal disease strongly suspicious for intestinal tuberculosis. Biopsy demonstrates compatible granulomatous inflammation, but acid-fast bacilli are not identified in the tissue sample. Which interpretation is most appropriate?

A patient with confirmed intestinal tuberculosis improves after starting multidrug therapy but plans to stop treatment early because the abdominal symptoms have resolved. Which consequence is the most important reason to emphasize completion of therapy?

A patient with chronic intestinal tuberculosis develops an abnormal communication between an affected bowel segment and an adjacent structure. Which pathological process most directly leads to this complication?