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. What is the major difference between the veins in the face and the veins in the rest of the body?






2. What is the major inorganic component of bone?






3. What is the most common one? - Intramedullary spinal cord tumor in adults






4. What is the major cell membrane sterol found in fungi?






5. Which leukotrienes are associated with the late - phase inflammatory response?






6. How many bases upstream is the eukaryotic TATA box promoter?






7. What vessel does the right gonadal vein drain into?






8. What slow - growing CNS tumor in 30- to 50-year - old patients with a long history of seizures has fried egg cellular appearance in a network of chicken wire?






9. What cells lining the ventricles have cilia on their luminal surface to move CSF?






10. What subtype of IgG does not bind to staphylococcal A protein?






11. What is the treatment for nephrogenic diabetes insipidus induced by lithium?






12. Does the direct or indirect basal ganglia pathway result in a decreased level of cortical excitation?






13. At the apex of the lung - What is the baseline intrapleural pressure - and what force does it exert on the alveoli?






14. What artery travels with the following veins? - Great cardiac vein






15. What is the DOC for the following protozoal infections? - Leishmaniasis






16. What is the triad of fat embolism?






17. Name the primary vesicle the following structures are derived from (proencephalon - mesencephalon - or rhombencephalon) - Pineal gland






18. Depolarization of the postsynaptic membrane...






19. Which organisms have polycistronic mRNA?






20. Have no GI tract They absorb nutrients from the host's GI tract.






21. What is the leading cause of primary hyperparathyroidism?






22. What forms of fatty acids are absorbed from the small intestine mucosa by simple diffusion?






23. What three CNs are associated with conjugate eye movements?






24. What vasculitis is characterized by systemic vasculitis in small to medium - size vessels (except the lung); affecting young males; 30% HBsAg - positive; P- ANCA and autoantibodies against myeloperoxidase?






25. Takes place in both the cytoplasm and the mitochondria.






26. Is it acceptable to lie - even if it protects a colleague from malpractice?






27. What oral hypoglycemic agent inhibits a - glucosidase in the brush border of the small intestine?






28. Name the Plasmodium species based on the following information:Persistent hypnozoite liver stage with relapses; blood smear shows amoeboid trophozoites with oval - jagged infected RBCs; 48- hour fever spike pattern






29. What agent - in combination with a MAOI inhibitor - can cause hypertensive crisis?






30. What substance do the JG cells of the kidney secrete in response to low blood pressure?






31. What is the second leading cause of death in the United States?






32. What is the classic triad of TB?






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






34. What is the stimulus for the classical pathway activation?






35. Corticotropin - releasing hormone promotes the synthesis and release of what prohormone?






36. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x abl






37. Name these immature defense mechanisms: x Psychic feelings converted to physical symptoms






38. What is the only factor of enzyme kinetics that the enzyme affects?






39. What pathway of the coagulation cascade is activated when it is in contact with foreign surfaces?






40. The inferior mesenteric artery drains into it.






41. What test is used to screen for HIV?






42. What is the most common one? - Solid tumor in the body






43. How are resistance and length related regarding flow?






44. What subset of CD4 T cells is responsible for mast cell and eosinophil precursor proliferation?






45. What personality disorder affects 75% of the prison population?






46. What paraphilia is defined as x Sexual urges toward children?






47. What form of penicillin is stable in acid environments?






48. After traveling in a plane across the Atlantic Ocean - an obese male goes to the ER with swollen right leg and sudden onset of shortness of breath. What do you immediately diagnose?






49. What is the term for the rate measured for a subgroup of a population?






50. Which of the following Enterobacteriaceae family members