MCQ Unit A


1) A family physician cares for a family consisting of a 45-year old husband, 43-year-old wife and a 12-year-old daughter. The family reports that recently the 77-year-old maternal grandmother who lived with them died after a prolonged respiratory infection. Autopsy subsequently confirms that she had active pulmonary tuberculosis at the time of death. The organism tested sensitive to all anti-tuberculosis drugs. In responding to the grandmother’s illness, which of the following is the most appropriate step in management?

A. Obtain leukocyte counts on all family members
B. Obtain sputum cultures for acid fast bacilli
C. Obtain chest computerized tomograms on all members
D. Place protein purified derivative (PPD) test on all members
E. Schedule bronchoscopy lavage for the adults

2) A 57-year-old man comes to the emergency department because of excruciating pain in his right big toe. He describes the pain as so severe that it woke him from a deep sleep. He has no chronic medical conditions, does not take any medications, and denies any similar episodes in the past. He admits to a few “drinking binges” over
the past 2 weeks. His temperature is 38.1 C (100.5 F), blood pressure is 130/90 mm Hg, and pulse is 80/min. Examination shows an erythematous, warm, swollen, and exquisitely tender right great toe. The skin overlying the first metatarsophalangeal joint is dark red, tense, and shiny. Synovial fluid analysis reveals negatively birefringent, needle-shaped crystals within polymorphonuclear leukocytes (PMNs). Laboratory studies show:

Serum
Leukocytes……..16,000/mm3
Uric acid………..15 mg/dL
Calcium………….9 mg/dL

Which of the following is the most appropriate pharmacotherapy?

A. Allopurinol
B. Ceftriaxone
C. Indomethacin
D. Probenecid
E. Sulfinpyrazone

3) A 35-year-old woman arrives on the floor after an uneventful hysteroscopy to evaluate her long history of uterine fibroids. About 30 minutes after her arrival, she begins to complain of nausea and has two episodes of vomiting. The physician administers 0.625 mg of droperidol and 400 mg of acetaminophen by mouth. On follow-up evaluation, the patient’s neck is involuntarily flexed to one side. She is alert, oriented, and conversant and has an otherwise normal neurologic examination. Which of the following is the most likely diagnosis?
A. Cerebral vascular accident
B. Conversion disorder
C. Dystonic reaction to droperidol
D. Munchausen syndrome
E. Seizure

4) A 50-year-old nurse consults a physician because of a rash above both her ankles. Physical examination demonstrates marked ankle edema with erythema, mild scaling, and brown discoloration of the overlying skin of the distal lower legs. Varicose veins are also noted. Which of the following is the most likely diagnosis?

A. Atopic dermatitis
B. Cellulitis
C. Lichen simplex chronicus
D. Nummular dermatitis
E. Stasis dermatitis

5) An AIDS patient develops symptoms suggestive of a severe, persistent pneumonia with cough, fever, chills, chest pain, weakness, and weight loss. The patient does not respond to penicillin therapy, but goes on to develop very severe headaches. The presence of focal neurologic abnormalities leads the clinician to order a CT scan of the head. This demonstrates several metastatic brain abscesses. Biopsy of one of these lesions demonstrates beaded, branching, filamentous gram-positive bacteria that are weakly acid fast. Which of the following is the most likely causative organism?

A. Actinomyces
B. Aspergillus
C. Burkholderia
D. Francisella
E. Nocardia

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By dr_kals Posted in 1 Tagged

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