section name header

Info


  1. All of the following are androgenic steroids EXCEPT [1]:
    A. Dihydrotestosterone
    B. Aldosterone
    C. Androstenedione
    D. 17-Hydroxyprogesterone
    E. Testosterone
  2. All of the following are common causes of bronchiolitis EXCEPT [2]:
    A. Respiratory Syncitial Virus
    B. Mycoplasma pneumoniae
    C. Adenovirus
    D. Parainfluenzae
    E. Influenza A
  3. All of the following are indicated for general childhood immunization EXCEPT [3]:
    A. Hepatitis A Virus Vaccine
    B. Hepatitis B Virus Vaccine
    C. Hemophilus Influenza Type B Vaccine
    D. Polio Vaccine
    E. Diphtheria / Pertussis (acellular) / Tetanus
  4. The most common cause of Croup is [4]:
    A. Respiratory Syncitial Virus
    B. Adenovirus
    C. Influenza Viruses
    D. Parainfluenza Virus
    E. Rhinovirus
  5. - 6. A seven year old boy presents with his ninth episode of fever with otitis media with sinusitis. He completed a course of Augmentin® (Amoxicillin - Clavulanate) 4 weeks prior to presentation for sinusitis and bronchitis productive of H. influenza Type B. He had received all standard childhood vaccinations. He sufferred from severe non-bloody diarrhea over the past summer after swimming in a local lake. As part of his school entry requirements 8 months ago, he was immunized with three doses of hepatitis B virus vaccine (Recombivax®) at 0, 1 and 6 months. His titer one month after the final dose was very low. A complete blood count showed slightly elevated white blood cells with neutrophilia, normal hematocrit, and a platelet count of 91K/µL (normal 150-350K/µL). Plasma albumin, liver and renal function tests, and calcium levels were normal. There is no family history of infectious or inflammatory disease, and his nine year old sister has had no significant medical problems. The most likely diagnosis is [5]:
    A. Normal variation with poor response to hepatitis B vaccine
    B. X-linked Severe Combined Immunodeficiency
    C. Vaccine Induced Thrombocytopenia Purpura
    D. Common Variable Immunodeficiency
    E. Acute lymphocytic leukemia
  6. Which ONE of the following laboratory tests is MOST likely to support the diagnosis for the patient described above [6] ?
    A. Low CD4+ T cell count
    B. Elevated CD8+ T cell count
    C. Low Serum Immunoglobulin G Levels
    D. Elevated Serum Immunoglobulin E Levels
    E. Anti-platelet Antibodies
  7. All of the following are true concerning febrile seizures EXCEPT [7]:
    A. Typically occur in infants ages 1-3
    B. No focality to seizure activity
    C. Seizures can last >60 minutes in setting of fever
    D. Persistent neurological deficits do not occur
    E. No family history of epilepsy
  8. All of the following are true concerning Hirschprung's Disease (HD) EXCEPT [8]:
    A. Males are more commonly affected by females
    B. Gut neurons are normal in appearance but fail to produce neurotransmitters
    C. Abnormalities in vasoactive intestinal polypeptide and nitric oxide
    D. Increased incidence with Down's Syndrome
    E. May lead to perforation, sepsis, and death
  9. A 6 year old boy presents with a fever of 39.6°C, a light red macular rash, and diffuse
joint pains with swelling of the fingers and toes. He is short of breath. He denies recent travel, insect bites, hiking, or contact with animals. There is no family history of autoimmune disease. On examination he is tachycardic (pulse 110 per minute), blood pressure 110/60 mmHg (left = right arm), respirations 18 per minute. Examination is unremarkable except for a grade II/VI systolic ejection murmer at the left sternal border with no change on inspiration or expiration. Laboratory results are notable for a white cell count of 15.4K/µL, 85% neutrophils, 1% eosinophils, hematocrit of 32% with a mean corpuscular volume of 78fL (normal 80-98 fL), platelet count 427K/µL (normal 150-350K/µL), AST 55 (normal <35), ALT 40 (normal <35), LDH (lactate dehydrogenase) 570 (normal <175), albumin 3.2gm/dL (normal 3.5-4.5gm/dL). The erythrocyte sedimentation rate is 103mm/hr. Six blood cultures are obtained and are negative after 3 days. An electrocardiogram shows sinus tachycaria with normal intervals and wave forms. An echocardiogram shows mild mitral valve prolapse, a small pericardial effusion without evidence of tamponade, and no vegetations or thrombi. The ejection fraction is normal. The most likely diagnosis is [9]:

A. Lyme Disease
B. Bacterial Endocarditis
C. Sepsis
D. Still's Disease (Systemic Onset Juvenile Chronic Arthritis)
E. Toxic Shock Syndrome

Answers navigator

  1. B
  2. B
  3. A
  4. D
  5. D
  6. C
  7. C
  8. B
  9. D
  10. E (Vitamin A supplementation probably increases risk of spina bifida.)