Pediatric Infectious Diseases 1

4 Questions | Total Attempts: 507

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Infectious Disease Quizzes & Trivia

Pediatric infectious disease questions for medical students, residents and fellows.


Questions and Answers
  • 1. 
    You are called to the emergency department late one evening in July to evaluate a 5-year-old girl who spent all day at the beach and now has fever, sore throat, and vomiting without diarrhea. Physical examination reveals a tired, fussy, but not toxic child who has a temperature of 38.9°C (102.0°F), pulse of 110 beats/min, respiratory rate of 20 breaths/min, blood pressure of 98/58 mm Hg, diffuse sunburn with accentuation in the groin and pharyngitis. Rapid testing for streptococcal infection is negative and a throat culture is pending.Additional laboratory evaluation reveals:
    • White blood cell count of 16.4x103/mcL (16.4x10p/L) with 2% bands and 84% polymorphonuclear leukocytes
    • Hemoglobin of 12.8 mg/dL (128 g/L)
    • Platelet count of 172x103/mcL (172x109/L)
    • Sodium of 138 mEq/L (138 mmol/L)
    • Potassium of 3.6 mEq/L (3.6 mmol/L)
    • Chloride of 101 mEq/L (101 mmol/L)
    • Bicarbonate of 19 mEq/L (19 mmol/L)
    • Blood urea nitrogen of 19 mg/dL (6.8 mmol/L)
    • Creatinine of 1.2 mg/dL (106.1 mcmol/L)
    • Glucose of 125 mg/dL (6.9 mmol/L)
    • Calcium of 8.4 (2.1 mmol/L)
    • A. 

      Give her IV antibiotics and then send her home with oral antibiotics and supportive care.

    • B. 

      Give her oral cephalosporins.

    • C. 

      Give her oral penicillin.

    • D. 

      Admit to the hospital for parenteral antibiotics and monitoring.

    • E. 

      Decide what to do when her throat culture results come back.

  • 2. 
    (from PREP ID) While working in a clinic, you are called to consult on a 17-year-old boy who recently emigrated from Vietnam. He has systemic lupus erythematosus and has been taking prednisone 40 mg/day for 2 months. He complains of nausea, abdominal pain, and diarrhea and states that he is having four to five runny stools per day. He denies seeing blood in the stool and states the water is not red after he defecates. His mother reports that he has had some low-grade fever over the past few days. She adds that just before leaving Vietnam some 2 to 3 weeks ago, he had respiratory complaints of cough and wheezing. He has lived in rural areas of Vietnam for most of his life; his family raised pigs and did some farming. They had multiple dogs that lived with or near them. On physical examination, the thin boy appears in no apparent distress. His temperature is 38.0°C (100.4°), respiratory rate is 28 breaths/min, heart rate is 120 beats/min, and blood pressure is 128/81 mm Hg. His weight is 50 kg and his height is 165 cm. He has diffuse abdominal tenderness with distention and hypoactive bowel sounds. You note serpiginous, erythematous lesions in the perianal region that the boy says cause him substantial discomfort due to the itching. A complete blood count demonstrates a white blood cell count of 15x103/mcL (15x109/L) with 45% segmented neutrophils, 10% bands, 30% lymphocytes, and 15% eosinophils. His hemoglobin is 13 g/dL (130 g/L), hematocrit is 39% (0.39), and platelet count is 250x103/mcL (250x109/L).What is causing his illness?
    • A. 

      Dientamoeba fragilis

    • B. 

      Entamoeba dispar

    • C. 

      Necator americanus

    • D. 

      Strongyloides stercoralis

    • E. 

      Trichuris triciura

  • 3. 
    (from PREP ID) You are evaluating a 6-month-old infant who recently was adopted from China. Review of her immunization records show that she received two doses of oral poliovirus vaccine (OPV) prior to her adoption. The parents are concerned about the risk of vaccine-associated paralytic poliomyelitis (VAPP) in their child. Of the following, the infant who is at HIGHEST risk for developing VAPP is one who:
    • A. 

      Has agammaglobulinemia and is receiving the first dose of OPV

    • B. 

      Is perinatally infected with HIV and is receiving the first dose of OPV

    • C. 

      Has selective IgA immunoglobulinemia and is receiving the first dose of OPV

    • D. 

      Is receiving the first dose of OPV

    • E. 

      Is receiving the second dose of OPV

  • 4. 
    (from Blueprints) A 3 year old girl presents with unilateral eyelid edema and erythema with mild proptosis. Extraocular movements are restricted. Orbital CT scan confirms the diagnosis of orbital cellulitis. What is the most appropriate antibiotics for empiric therapy in this patient. 
    • A. 

      Tetracycline

    • B. 

      Ceftazidime

    • C. 

      Ampicillin-sulbactam

    • D. 

      TMP-SMX

    • E. 

      Metronidazole