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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 causative organism of acne vulgaris?






2. Name the antimicrobial agent whose major side effect is listed - Teratogenicity






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






4. What artery travels with the following veins? - Middle cardiac vein






5. What are the three Bs of adult polycystic kidneys?






6. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x Ki - ras and erb -2






7. Name the cancer associated with the following tumor markers. (Some may have more than one answer.) x alpha - Fetoprotein






8. What form of hormone is described as having membrane - bound receptors that are stored in vesicles - using second messengers - and having its activity determined by free hormone levels.






9. What is the most common one? - Form of muscular dystrophy






10. Reed - Sternberg cells






11. Leading to gallstones and steatorrhea.






12. What AA is substituted for glutamic acid at position 6 on the Beta - chain in patients with sickle cell anemia?






13. What two PGs are used to induce labor?






14. What determines the rate of a reaction?






15. Name the RNA subtype based on the following: x RNA molecules with enzymatic activity






16. Name the cluster B personality disorder: x In a constant state of crisis - promiscuous - unable to tolerate anxiety- causing situations - afraid of being alone - and having intense but brief relationships






17. Which four bacteria require cysteine for growth?






18. What is the most common one? - Location of ependymomas in children






19. What is the term for days 15 to 28 in the female cycle?






20. What is the DOC for esophageal candidiasis?






21. What three drugs are associated with SLE- like syndrome in slow acetylators?






22. Require NaCl in its growth medium.






23. Cri - du - chat syndrome results in a terminal deletion of the short arm of what chromosome?






24. What is the term for a congenital absence of the ganglionic cells of the Auerbach and Meissner plexus in the rectum and sigmoid colon?






25. What is the name of the B cell that secretes Ig?






26. What wave is the cause of the following venous pulse deflections? - The contraction of the right atrium






27. What female follicular cell is under LH stimulation and produces androgens from cholesterol?






28. What is the term to describe a decrease in the cell size and function usually associated with disuse?






29. Name the lung measurement based on the following descriptions: x The maximal volume inspired from FRC






30. In what disease do you see horseshoe kidneys - rockerbottom feet - low - set ears - micrognathia - and mental retardation?






31. Name the lipoprotein based on the following characteristics - apo E - apo C- II - apoB-48






32. What diseases are associated with the HLA- DR3 allele

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






34. Name the aphasia based on these characteristics: x Both Broca's and Wernicke's areas damaged by lesion in the presylvian speech area; trouble repeating statements; poor comprehension with telegraphic speech






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

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36. What aneurysm of the circle of Willis is associated with polycystic kidney disease?






37. What structure of the knee is described thus? - Prevents adduction






38. Which benzodiazepine has the longest half - life?






39. Name the most common type or cause - Nephrotic syndrome






40. In a diabetic patient - to What does aldose reductase convert glucose?






41. What is the label given to an individual whose IQ is x 130






42. What papillae send their senses via chorda tympani of CN VII?






43. Can parents withhold treatment from their children?






44. Name the antimicrobial agent whose major side effect is listed - CN VIII damage (vestibulotoxic)






45. What pancreatic islet cell tumor is associated with watery diarrhea - hypokalemia - and achlorhydria?






46. ADH is secreted in response to What two stimuli?






47. What cancer of the male genitourinary system is associated with osteoblastic bony metastasis?






48. Are the following responses associated with histamines H1 or H2 receptor activation? - Inotropic action and automaticity






49. What water - soluble - vitamin deficiency is associated with neural tube defects in the fetus?






50. What are the following changes seen in the luminal fluid by the time it leaves the PCT of the nephron? - Percentage of Na+ - Cl - - K+ left in the lumen