USMLE Step 1 Prep
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USMLE Step 1 Prep
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25 Questions

1. What is the karyotype in Turner syndrome?

2. What is the primary method of nonverbal communication of emotional states?

3. If you order a V/Q scan for suspected pulmonary emboli - is the filling defect seen on the ventilation or perfusion side?

4. What is an elevated - fluid - filled cavity between skin layers up to 0.5 cm?

5. Name the antimicrobial agent whose major side effect is listed - Grey baby syndrome

6. If the family member of a patient asked you to withhold information - would you?

7. Which diuretic is used as an adrenal steroid antagonist?

8. In a skeletal muscle fiber - the interior of the T- tubule is...

9. What is the name of the tumor when gastric carcinoma spreads to the ovaries?

10. Increased levels of what neurotransmitter - in the hippocampus - decrease the likelihood of learned helplessness?

11. What elongation factor is inactivated by ADP ribosylation - preventing translation?

12. Describe What type of fluid is either gained or lost with the following changes in body hydration for the ECF volume - ICF volume - and body osmolarity - respectively: x ECF: increase; ICF: no change; body: no change

13. Name the lipoprotein based on the following characteristics - apo A-1 - apo E - apo C- II

14. Regarding the Lac operon - for What do the following genes code? - I gene

15. Name the DNA virus: x ssDNA; naked; icosahedral; replicates in the nucleus

16. Name the RNA subtype based on the following: x Only type of RNA that is translated

17. What family do the following viruses belong to? - RSV

18. Increased urinary excretion of what substance is used to detect excess bone demineralization?

19. How many days after the LH surge is ovulation?

20. What type of bias is it when the sample population is not a true representative of the population?

21. What Ig activates the alternate pathway - neutralizes bacterial endotoxins and viruses - and prevents bacterial adherence?

22. What cell type do cromolyn and nedocromil affect for prophylactic management of asthma via blockade?

23. What organism would you suspect in a patient with diarrhea after eating rice?

24. Lacks glycerol kinase.

25. What is the effect of T3 on the glucose absorption in the small intestine?

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