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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. Name the type of regeneration (i.e. - labile - stable - or permanent) based on the following examples - Epidermis






2. Name the antidote - Cyanide






3. What are the three components of amyloid?






4. What organ is responsible for the elimination of excess nitrogen from the body?






5. Are the following responses associated with histamines H1 or H2 receptor activation? - SA nodal activity






6. Name the type of exudate - given the following examples - Rickettsial infection






7. 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 - decrease; ICF - decrease; body: increase






8. What muscle laterally rotates the femur to unlock the knee?






9. What complement factor or factors are associated with x Anaphylaxis?






10. What three lung measurements must be calculated because they cannot be measured by simple spirometry?






11. Are the JG cells of the nephron a part of the afferent or efferent arteriole?






12. Which HPV serotypes are associated with condyloma acuminatum?






13. With which pituitary adenoma is an elevated somatomedin C level associated?






14. Name the MCC - Walking pneumonia - seen in teens and military recruits






15. What two AAs do not have more than one codon?






16. The elimination of the unfertilized egg. In females - meiosis II is incomplete unless fertilization takes place.






17. Name the compartment of the mediastinum associated with the following thoracic structures: Aortic arch






18. How does the sympathetic nervous system affect insulin secretion?






19. What is the most common one? - Viral cause of myocarditis






20. After fertilization - what cells of the corpus luteum x Secrete estrogen?






21. Name the most common cause - Infectious pancreatitis






22. When does most REM sleep occur - in the first or second half of sleep?






23. What is the most common one? - Bone tumor






24. What pancreatic islet cell secretes somatostatin?






25. Name the DNA virus x Linear dsDNA; enveloped; virion - associated polymerases; replicates in the cytoplasm :






26. What enzyme is inhibited by disulfiram?






27. The inferior mesenteric artery drains into it.






28. Which of the following is not a risk factor for cholesterol gallstones: pregnancy - OCP use - female gender - hemolytic anemia - cirrhosis - and obesity? (May be more than one answer.)






29. Are excitatory neurotransmitters in the CNS.






30. What component of the cardiovascular system has the largest blood volume? Second largest blood volume?






31. What congenital small bowel outpouching is a remnant of the vitelline duct?






32. Orphan Annie cells






33. What organism is associated with the following types of diarrhea? Bloody diarrhea associated with hamburger ingestion






34. What type of correlation is defined as x Two variables that go together in the same direction?






35. A mother takes her 2- week - old infant to the ER because the baby regurgitates and vomits after eating and has peristaltic waves visible on the abdomen and a palpable mass in the right upper quadrant. What is your diagnosis?






36. What muscle of the middle ear is innervated by CN VII?






37. Name the Hgb - O2 binding site based on the following information: x Least affinity for O2; requires the highest PO 2 levels for attachment (approx. 100 mm Hg)






38. Name the most common type or cause - Diarrhea in children






39. The surge of what hormone induces ovulation?






40. Name the most common type or cause - Urinary tract obstruction






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






42. In What tract does pain - temperature - and crude touch sensory information ascend to the postcentral gyrus of the parietal lobe?






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






44. What enzyme is blocked by hydroxyurea?






45. Name the most common type or cause - Acute tubular necrosis






46. Where do sperm go for maturation?






47. Cannot be diagnosed until puberty.






48. What is the most serious form of tinea capitis - which results in permanent hair loss and is highly contagious?






49. What coronary artery vasculitis is seen in Japanese infants and children less than 4 years old with acute febrile illness - conjunctivitis - maculopapular rash - and lymphadenopathy?






50. What is the label given to an individual whose IQ is x 90 to 109






Can you answer 50 questions in 15 minutes?



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