Multiple Choice Questions (MCQ)

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Category: Medicine--->Infectious Disease
Page: 5

Question 21# Print Question

A 22-year-old male patient complains of fever and shortness of breath. There is no pleuritic chest pain or rigors and no sputum production. A chest x-ray shows diffuse perihilar infiltrates. The patient worsens while on azithromycin. A methenamine silver stain shows cystlike structures. Which of the following is correct? 

A. Definitive diagnosis can be made by serology
B. The organism will grow after 48 hours
C. History will likely provide important clues to the diagnosis
D. Cavitary disease is likely to develop
E. The infection is unlikely to recur

Question 22# Print Question

A 40-year-old woman cut her finger while cooking in her kitchen. Two days later she became rapidly ill with fever and shaking chills. Her hand became painful and mildly erythematous. Later that evening her condition deteriorated as the erythema progressed and the hand became a dusky red. Bullae and decreased sensation to touch developed over the involved hand. What is the most important next step in the management of this patient?

A. Surgical consultation and exploration of the wound
B. Treatment with clindamycin for mixed aerobic-anaerobic infection
C. Treatment with penicillin for clostridial infection
D. Vancomycin to cover community-acquired methicillin-resistant Staphylococcus
E. Evaluation for acute osteomyelitis

Question 23# Print Question

A 25-year-old man from East Tennessee had been ill for 5 days with fever, chills, and headache when he noted a rash that developed on his palms and soles. In addition to macular lesions, petechiae are noted on the wrists and ankles. The patient has recently returned from a summer camping trip. Which of the following is the most important aspect of the history?

A. Exposure to contaminated spring-water
B. Exposure to raw pork
C. Exposure to ticks
D. Exposure to prostitutes
E. Exposure to mosquitos

Question 24# Print Question

A 19-year-old man has a history of athlete’s foot but is otherwise healthy when he develops sudden onset of fever and pain in the right foot and leg. On physical examination, the foot and leg are fiery red with a well-defined indurated margin that appears to be rapidly advancing. There is tender inguinal lymphadenopathy. Which organism is the most likely cause of this infection? 

A. Staphylococcus epidermidis
B. Tinea pedis
C. Streptococcus pyogenes
D. Mixed anaerobic infection
E. α-Hemolytic streptococci

Question 25# Print Question

An 18-year-old male patient has been seen in the clinic for urethral discharge. He is treated with ceftriaxone, but the discharge has not resolved and the culture has returned as no growth. Which of the following is the most likely etiologic agent to cause this infection?

A. Ceftriaxone-resistant gonococci
B. Chlamydia psittaci
C. Chlamydia trachomatis
D. Herpes simplex
E. Chlamydia pneumoniae

Category: Medicine--->Infectious Disease
Page: 5 of 7