PLE Category: Internal Medicine

PLE-2208

What agar can be used to differentiate the strain of E. coli producing HUS from other strains?

PLE-2209

What is the most common type of head and neck cancer?

PLE-2206

Which of the anti-TB medications has the potential to cause pyridoxine deficiency?

PLE-2207

What toxin does an E. coli infection causing hemolytic uremic syndrome (HUS) produce?

PLE-2204

A 56-year-old patient with advanced alcoholic cirrhosis and known ascites is found to have abdominal pain, fever to 102 F, and a peripheral white blood cell count of 17,000 with a shift to the left. Which of the following statements regarding the primary diagnosis is correct?

PLE-2205

The 75-year-old man complains of chest pain while climbing stairs. On physical examination, there is a II/VI systolic ejection murmur that radiates to the neck. The carotid upstrokes are delayed and diminished in volume. What is the best test to confirm the diagnosis?

PLE-2203

A 62-year-old woman presents to her primary care physician with a 2-month history of stiffness and aching in her neck, shoulders, and hips. She is referred to a rheumatologist. After doing a battery of tests, he diagnoses the woman with polymyalgia rheumatica, not fibromyalgia. Which of the following findings is characteristic of polymyalgia rheumatica?

PLE-2202

A 57-year-old man is admitted to the hospital because of acute shortness of breath shortly after a 12-hour automobile ride. Findings on physical examination are normal, except for tachypnea and tachycardia. He does not have edema or popliteal tenderness. An electrocardiogram reveals sinus tachycardia but is otherwise normal. Which of the following statements is correct?

PLE-2201

A 55-year-old man presents with a chronic rash over the buttocks and hips that has been unresponsive to topical steroids. It has recently started to itch. Examination shows 6- to 12-cm erythematous, scaling plaques in a bathing trunk distribution. Potassium hydroxide preparation is negative for evidence of a fungal infection. A skin biopsy indicates an atypical lymphocytic infiltrate with evidence of epidermotropism and Pautrier microabscess formation. What is the most likely diagnosis?