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USMLE Step 1 Prep

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the most common one? - Site for colonic diverticula






2. Name the primary vesicle the following structures are derived from (proencephalon - mesencephalon - or rhombencephalon) - Cerebellum






3. What term describes the volume of plasma From which a substance is removed over time?






4. What embryonic structure forms the adult female structures? - Glans clitoris - corpus cavernosus - and spongiosum






5. What percentage of children born to HIV- positive mothers will test positive for HIV at birth?






6. What blood disorder is a side effect of metformin?






7. With What three enzymes is thiamin pyrophosphate (TPP) associated?






8. Why is there a decrease in the production in epinephrine when the anterior pituitary gland is removed?






9. Which shuttle is used to bring fatty acyl CoA from the cytoplasm for ketogenesis?






10. What limb of the internal capsule is not supplied by the middle cerebral artery?






11. Which class of antiarrhythmics blocks sodium channels?






12. What is the most common one? - Intraspinal tumor






13. What mineral - via excessive depositions in the liver - causes hemochromatosis?






14. Name the area of the cerebral cortex affected by the description of the effects - symptoms - and results of the lesion - Denies being blind - cortical blindness

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15. Which class of antiarrhythmics are calcium channel blockers?






16. What is the DOC for the following protozoal infections? - Giardiasis






17. Name the RNA subtype based on the following: x The most abundant form of RNA in the cell






18. Name the aphasia based on these characteristics: x Lesion in Brodmann area 22; impaired comprehension; incoherent rapid - fluent speech; verbal paraphrasias; trouble repeating statements

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19. What structure or structures cross the diaphragm at x T10 level?






20. What would be the result if an Ab were cleaved with pepsin?

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21. What is the role of the negative charge on the filtering membrane of the glomerular capillaries?






22. Circulating levels of what hormone cause the cervical mucus to be thin and watery - allowing sperm an easier entry into the uterus?






23. What is the second arrested stage of development in the female reproductive cycle?






24. What are the genetic variants of a molecule within members of the same species?






25. What stage of male development is characterized by the following LH and testosterone levels? - Decreased testosterone production is accompanied by an increase in LH production.






26. Name the structure that enters or exits the following foramina: x Stylomastoid foramen






27. What Brodmann area is associated with x Primary auditory cortex?






28. What prokaryotic positioning enzyme in translation is blocked by the following? - Tetracycline






29. What ovarian carcinoma is characterized by psammoma bodies?






30. Which M- protein strain of Streptococcus pyogenes is associated with acute glomerulonephritis?






31. What are the two ketogenic AAs?






32. What renal disease in diabetic patients is seen as a halo of capillaries around the mesangial nodules?






33. What potentially lethal side effect of clozapine should be monitored with frequent blood drawing?






34. What AR disorder of copper metabolism can be characterized by Kayser - Fleischer rings - decreased ceruloplasmin levels - and increased urinary copper excretion and tissue copper levels?






35. Where is the greatest venous PO2 in resting tissue?






36. What vascular tumor associated with von Hippel - Lindau syndrome involves the cerebellum - brainstem - spinal cord - and retina?






37. What GnRH analog is used as a repository form of treatment in prostatic cancer?






38. Caf






39. What is defined as a general estimate of the functional capacities of a human?






40. Are more Abs produced in a primary or a secondary immune response?






41. What are the four functions of saliva?






42. What is the term for RBC fragments?






43. What ocular ganglion is affected if the pupil on the affected side sluggishly responds to light with normal accommodation?






44. What class of drugs are the DOCs for peptic ulcer disease - Zollinger - Ellison syndrome - and gastroesophageal reflux disease?






45. What is the most common one? - Site for an ectopic abdominal pregnancy






46. What is the rate - limiting step of the following? - Fatty acid synthesis






47. Name the associated chromosomal translocation - CML






48. What is the renal compensation mechanism for acidosis?






49. What is the tetrad of tetralogy of Fallot?






50. There is a strong ________ between IQ and academic achievement.







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