Test your basic knowledge |

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. When a person goes from supine to standing - what happens to the following? - Dependent venous blood volume






2. What is the term for the amount of a drug that is needed to produce the desired effect?






3. To What does aldose reductase convert galactose?






4. What type of fiber or fibers are carried in (answer motor - sensory - or both) x Ventral root?






5. What gram - positive rod is distinguished by its tumbling motility?






6. What component of the basement membrane binds to collagen type IV and heparin sulfate and is a cell surface receptor?






7. Where do the primordial germ cells arise?






8. What AA is a precursor of the following substances? - NAD






9. At the D2A receptor have the capacity to induce pseudoparkinsonism.






10. What nerve supplies general sensation to the anterior two - thirds of the tongue?






11. What enzyme is deficient in hereditary protoporphyria?






12. Which hepatitis virus is in the Flaviviridae family?






13. What is the most common one? - Kidney stone type






14. What are the two side effects of opioids to which the user will not develop tolerance?






15. What AD GI neoplasia produces multiple adenomatous polyps - osteomas - fibromas - and epidural inclusion cysts?






16. What type of mortality rate is defined as the number of deaths x From a specific cause per number of persons with the disease?






17. In What area of the GI tract does iron get absorbed?






18. Name the cluster B personality disorder: x Criminal behavior; lacking friends - reckless - and unable to conform to social norms






19. Has analgesic and antipyretic activities but lacks anti - inflammatory effects.






20. In a topographical arrangement of the cerebellar homunculus map - What area or lobe x Is involved in motor planning?






21. What is the term for failure of the testes to descend into the scrotum?






22. Name the antidote - Copper






23. What hormone acts on Granulosa cells?






24. What vessels have the largest total cross - sectional area in systemic circulation?






25. What is the term that refers to the number of channels open in a cell membrane?






26. Which subset of MEN syndrome is associated with the following? - Medullary carcinoma of the thyroid - pheochromocytoma - and parathyroid adenomas (or hyperplasia)






27. What large - spore - forming - gram - positive anaerobic rod is associated with infections due to puncture wounds and trauma?






28. Name the primary vesicle the following structures are derived from (proencephalon - mesencephalon - or rhombencephalon) - Cerebral hemispheres






29. What type of Ag do T cells recognize?






30. What phase of the cell cycle are the following antineoplastic agents specific for? - 6- Thioguanine






31. What is the primary target for the action of glucagon?






32. Why is spermatogenesis decreased with anabolic steroid therapy?






33. The 'tea - and - toast' diet is classically associated with what cause of megaloblastic anemia?






34. What enzyme is inhibited by sulfonamides?






35. What is the PO2 of aortic blood in fetal circulation?






36. What is the most common genetic deficiency resulting in hemolytic anemia?






37. Which one of the cerebellar peduncles is mainly responsible for outgoing (efferent) information?






38. What is the most common one? - Lymph node affected in non - Hodgkin lymphoma






39. What is the term for Candida infection of the oral mucosa?






40. What cerebral lobes are most commonly affected in herpes encephalitis?






41. What vitamin deficiency is evidenced by poor wound healing - loose teeth - bleeding gums - petechiae - and ecchymosis?






42. Name the structure that enters or exits the following foramina: x Carotid canal






43. Name the most common type or cause - Reversible HTN in the United States






44. The increased oxygen consumption after phagocytosis is for...






45. What is the longest and most convoluted segment of the nephron?






46. Projectile nonbilious vomiting and a small knot at the right costal margin (olive sign) are hallmarks of What embryonic disorder?






47. What direction would the tongue protrude in a left CN XII lesion?






48. What excitatory fibers arise from the inferior olivary nuclei on the contralateral side of the body?






49. What picornavirus is associated with hand - foot - and - mouth disease?






50. What reflex - seen in lesions of the corticospinal tract - is an extension of the great toe with fanning the of remaining toes?