KMU Past Paper Practice

Question:

A 30-year-old woman has chronic inflammatory colitis. Repeated assessment confirms inflammatory bowel disease, but the distribution and histological features do not allow confident classification as either ulcerative colitis or Crohn disease. Which classification is most appropriate at this stage?

Options:

Correct Answer:
Inflammatory bowel disease-unclassified

Explanation: When chronic inflammatory colitis is confirmed but available features do not confidently separate UC from Crohn disease, IBD-unclassified is an appropriate descriptive category.

Question:

A 26-year-old woman with active colonic inflammatory disease undergoes biopsy. Numerous neutrophils are present within the lumina of colonic crypts. Which pathological finding does this describe?

Options:

Correct Answer:
Crypt abscess

Explanation: Accumulation of neutrophils within colonic crypt lumina forms a crypt abscess, an important microscopic feature of active ulcerative colitis.

Question:

A 34-year-old man with chronic ileocolonic inflammation undergoes colonoscopy. Deep linear ulcers intersect, leaving edematous islands of surviving mucosa between them. Which gross appearance best describes this finding?

Options:

Correct Answer:
Cobblestone mucosa

Explanation: Deep intersecting ulcers separated by swollen residual mucosa create the characteristic cobblestone appearance of Crohn disease.

Question:

A patient with active extensive inflammatory bowel disease has persistent diarrhea, weight loss and serum albumin of 2.5 g/dL. Renal and hepatic function are otherwise satisfactory. Which interpretation best explains the low albumin in this setting?

Options:

Correct Answer:
Inflammation, protein loss and poor nutritional status

Explanation: Active IBD can lower albumin through systemic inflammation, intestinal protein loss and inadequate nutrition, making albumin useful in assessing disease severity and nutritional impact.

Question:

A 37-year-old woman with chronic active colitis reports increasing fatigue. Hemoglobin is reduced and the red cells are microcytic. She has had repeated episodes of blood mixed with stool. Which mechanism most directly explains this hematological finding?

Options:

Correct Answer:
Chronic mucosal blood loss causing iron depletion

Explanation: Recurrent bleeding from inflamed and ulcerated colonic mucosa can gradually deplete iron stores and produce microcytic anemia.

Question:

A 25-year-old man with an acute inflammatory bowel disease flare has frequent diarrhea, postural dizziness, dry mucous membranes and mild electrolyte disturbance. Which initial management principle most directly addresses his immediate physiological problem?

Options:

Correct Answer:
Correction of fluid and electrolyte deficits

Explanation: Significant diarrhea can cause volume depletion and electrolyte loss; restoring these deficits is an immediate supportive priority before longer-term disease control.

Question:

A 33-year-old patient with extensive small-bowel Crohn disease has chronic diarrhea, weight loss and evidence of nutritional deficiency. Which disease feature most directly accounts for these nutritional problems?

Options:

Correct Answer:
Loss of absorptive function in diseased small bowel

Explanation: Extensive Crohn involvement of the small intestine reduces effective absorptive surface and can therefore produce malabsorption, weight loss and nutritional deficiencies.

Question:

A patient with mild-to-moderate ulcerative colitis has been taking mesalamine for several months. Routine monitoring shows an unexplained rise in serum creatinine. Which drug-related adverse effect should be considered?

Options:

Correct Answer:
Renal injury

Explanation: Mesalamine is generally well tolerated, but clinically important renal injury can occur and should be considered when renal function deteriorates during treatment.

Question:

A young woman treated with sulfasalazine for ulcerative colitis develops laboratory evidence of folate deficiency during follow-up. Which treatment-related property best explains this association?

Options:

Correct Answer:
Sulfasalazine-related interference with folate status

Explanation: Folate deficiency is a recognized adverse effect of sulfasalazine and should be considered during prolonged therapy, particularly when compatible hematological changes develop.

Question:

A patient with inflammatory bowel disease is started on azathioprine as a steroid-sparing drug. Several weeks later he develops acute epigastric pain with biochemical evidence of pancreatic inflammation. Which adverse effect is most likely?

Options:

Correct Answer:
Acute pancreatitis

Explanation: Pancreatitis is an important characteristic adverse effect of azathioprine and should be suspected when new acute upper abdominal pain develops after treatment begins.

Question:

A patient with Crohn disease is receiving methotrexate as an immunomodulatory drug. Follow-up testing shows progressively elevated serum transaminases without another clear cause. Which toxicity is most consistent with this treatment?

Options:

Correct Answer:
Hepatotoxicity

Explanation: Methotrexate can cause clinically important hepatic toxicity, so rising transaminases during treatment should prompt consideration of drug-related liver injury.

Question:

A patient with inflammatory bowel disease has received prolonged systemic glucocorticoid therapy. After abruptly stopping treatment, he develops marked weakness and hypotension. Which pharmacological consequence most directly explains this presentation?

Options:

Correct Answer:
Suppression of the hypothalamic-pituitary-adrenal axis

Explanation: Prolonged systemic glucocorticoids suppress endogenous adrenal function; abrupt withdrawal may leave inadequate cortisol production and cause weakness and hypotension.

Question:

A patient with moderate-to-severe inflammatory bowel disease receives an intravenous anti-TNF monoclonal antibody. During treatment he develops flushing, pruritus and shortness of breath. Which treatment-related problem best explains this event?

Options:

Correct Answer:
Infusion-related reaction

Explanation: Intravenous monoclonal antibody therapy can produce infusion reactions with flushing, itching and respiratory symptoms during or shortly after administration.

Question:

A 29-year-old woman has mild-to-moderate ulcerative colitis without systemic toxicity. The treatment plan aims to suppress inflammation primarily within the colonic mucosa. Which drug class is most appropriate for this therapeutic role?

Options:

Correct Answer:
Aminosalicylates

Explanation: Aminosalicylates are particularly useful in mild-to-moderate UC because they reduce inflammatory mediator activity within the intestinal mucosa.

Question:

A 41-year-old man is admitted with severe ulcerative colitis. Despite appropriate intensive medical treatment, he continues to have severe symptoms and systemic illness. There is no improvement over the expected treatment period. Which next management principle is most appropriate?

Options:

Correct Answer:
Surgical assessment for colectomy-based management

Explanation: Acute severe UC that fails appropriate medical therapy is an important indication for surgical involvement because continued uncontrolled colitis carries major complication risk.

Question:

A patient with very severe colonic inflammation develops progressive abdominal distension and systemic toxicity. Imaging shows marked colonic dilatation. Which mechanism most directly contributes to this complication?

Options:

Correct Answer:
Inflammatory impairment of colonic neuromuscular function

Explanation: In severe colitis, intense inflammation can impair colonic neuromuscular activity, producing marked dilatation together with systemic toxicity.

Question:

A 36-year-old man with Crohn disease has persistent draining fistulous disease despite conventional treatment. The specialist considers escalation to a targeted biologic agent with a recognized role in selected fistulizing disease. Which class best fits this plan?

Options:

Correct Answer:
Anti-TNF monoclonal antibodies

Explanation: Anti-TNF biological therapy can be valuable in moderate-to-severe Crohn disease and has an important role in selected patients with fistulizing disease.

Question:

Two patients with ulcerative colitis are reviewed for colorectal surveillance. One has recently diagnosed limited disease; the other has had extensive colitis for many years with persistent inflammatory activity. Which principle best explains why their surveillance plans may differ?

Options:

Correct Answer:
Duration and extent of colonic inflammation influence dysplasia risk

Explanation: Colorectal neoplasia risk increases with longstanding and more extensive colonic inflammation, so surveillance intensity is individualized according to risk profile.

Question:

A colonic biopsy from a patient with longstanding inflammatory bowel disease shows branched, irregularly spaced crypts and chronic inflammatory cells in the lamina propria, but no neutrophils within crypt lumina. Which interpretation is most appropriate?

Options:

Correct Answer:
Chronic mucosal architectural injury

Explanation: Crypt distortion and chronic lamina propria inflammation indicate chronic mucosal injury, whereas neutrophilic cryptitis or crypt abscesses indicate active inflammation.

Question:

A 32-year-old woman with previously stable ulcerative colitis develops a sudden increase in diarrhea and fever. Before assuming that this represents uncomplicated immune-mediated disease activity and escalating immunosuppression, which step is most appropriate?

Options:

Correct Answer:
Perform stool assessment to exclude an infectious cause

Explanation: Infection can mimic or worsen an IBD flare, so an acute deterioration should be assessed for infectious causes before treatment is intensified. :contentReference[oaicite:0]{index=0}