For over 50 years, the Medical Knowledge Self-Assessment Program (MKSAP) has been the most trusted resource in continuous learning for internal medicine physicians and residents. The tradition continues with MKSAP 19.
MKSAP 19 is available in several flexible formats, allowing you to choose the format that best fits your lifestyle. Each format includes 12 syllabus sections and 1,200 associated deep-learning self-assessment questions.
Learn about the new features in MKSAP 19, as well as pricing and release dates.
MKSAP 19 Q & A
A 60-year-old man is evaluated for a 4-month history of four to five loose bowel movements daily with antecedent abdominal cramps. He does not have nocturnal diarrhea, and the diarrhea has no relationship to eating. He also has a 1-year history of type 2 diabetes mellitus, treated with lifestyle interventions until 4 months ago, and hypothyroidism, diagnosed 10 years ago. He completed a course of amoxicillin for pneumonia 6 months ago. Current medications are metformin and levothyroxine.
On physical examination, vital signs are normal and other findings are unremarkable. His abdomen is soft, nontender, and nondistended; active bowel sounds are normal.
Erythrocyte sedimentation rate is 15 mm/h, leukocyte count is 4900/μL (4.9 × 109/L), and hematocrit is 44%.
Which of the following is the most likely cause of the patient's diarrhea?
A: Clostridioides difficile colitis
B: Crohn disease
D: Microscopic colitis