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FREE MEDICAL AND STUDY GAMES ABOUT USMLE STEP 1
EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -126 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: what does HHV-6 cause?
Answer:
roseola (6th disease) Question 2: cobalt toxicity causes:
Answer:
cardiomyopathy
Question 3: how does Yersinia pestis stain?
Answer:
Bipolar (safety pin)
Question 4: treatment for tularemia?
Answer:
streptomycin
Question 5: K antigen =
Answer:
capsule
Question 6: what does a proteus UTI lead to?
Answer:
ammonium calculi (due to urease production) Question 7: which is more infective: salmonella or shigella?
Answer:
shig (x1000!)
Question 8: what's the largest virus there is?
Answer:
poxvirus
Question 9: Vibrio cholera treatment?
Answer:
tetracycline
Question 10: most common cause of gram negative abdominal infections?
Answer:
bacteroides fragilis Question 11: lead toxicity causes:
Answer:
disruption of heme synthesis and renal tubular acidosis
Question 12: What is the Congo Red stain used for?
Answer:
Amyloid (green birefringence)
Question 13: what form of chlamydis is visible in the cytoplastmic inclusions seen on giemsa stain?
Answer:
reticulate body
Question 14: what does HHV-8 cause
Answer:
kaposi sarcoma
Question 15: most common cause of pneumonia in elderly?
Answer:
- pneumoniae
Question 16: what form do corynebacterium form in culture?
Answer:
chinese characters Question 17: Optochin sensitive: S. viridans?
Answer:
no (resistant)
Question 18: what is an exotoxin made of?
Answer:
polypeptides Question 19: what do gram negative bacteria have in the outer layer of their cell wall?
Answer:
LPS (endotoxins) Question 20: asbestos exposure can lead to:
Answer:
mesothelioma
Question 21: what family is rotavirus from?
Answer:
reo
Question 22: most common cause of otitis media?
Answer:
- pneumoniae; H. influenza
Question 23: most common cause of bronchitis?
Answer:
- influenza, S. pneumoniae
Question 24: Treatment for bacteroids fragilis?
Answer:
Metronidazole
Question 25: most common cause of childhood diarrhea?
Answer:
Rotavirus
Question 26: What is the Geimsa stain used for?
Answer:
blood smears
Question 27: most common cause of pneumonia in young adults?
Answer:
mycoplasma Question 28: Optichin sensitive: pneumococcus?
Answer:
yes
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