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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? - Renal calculus type






2. What are the two absolute requirements for the cytochrome P450 enzyme system?






3. Name the most common type or cause - Urethritis in a young - newly sexually active individual






4. Name the macrophage based on its location: x Brain macrophages






5. What is the term for excessive amounts of granulation tissue that can block re - epithelialization and wound healing?






6. Pseudorosettes






7. How are pulse pressure and compliance related?






8. What is the first membrane - bound Ig on B cell membranes?






9. How far below ideal body weight are patients with anorexia nervosa?






10. A patient goes to the ER with signs and symptoms of biliary colic. Which opioid analgesic do you choose?






11. Being college educated increases a man's risk of having...






12. What pathophysiologic disorder is characterized by the following changes in cortisol and ACTH? - Cortisol increased - ACTH increased






13. What type of potential is characterized as graded - decremental - and exhibiting summation?






14. Bloody tap on lumbar puncture






15. Name the eukaryotic DNA polymerase based on the following information: x Synthesizes the lagging strand during replication






16. 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






17. Name the correct artery - The right recurrent laryngeal nerve passes around it.






18. Name the most common type or cause - Subacute bacterial endocarditis






19. How many attacks are needed over how much time before panic disorder is diagnosed?






20. What ribosomal subunit binds first to the mRNA strand?






21. Abs to what hepatitis B Ag provide immunity?






22. What are the following changes seen in the luminal fluid by the time it leaves the PCT of the nephron? - Concentration of CHO - AA - ketones - peptides






23. What disease with familial mental retardation produces large - everted ears and macro - orchidism?






24. What drug blocks glucose uptake - leading to decreased formation of ATP and resulting in immobilization of the parasite?






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






26. Name the product or products of arachidonic acid: x Vasoconstriction and platelet aggregation produced by platelets






27. What form of angina is characterized by x Coronary artery luminal narrowing - symptom occurrence during exertion - ST segment depression on ECG?






28. Name the macrophage based on its location: x Lung macrophages






29. What is the vector for Chagas disease?






30. Name the antidote - Arsenic






31. What AR disorder is due to a deficiency in glycoprotein IIb - IIIa - resulting in a defect in platelet aggregation?






32. What is the term for the degree to which a test measures what it is intended to measure?






33. What happens to free hormone levels when the liver decreases production and release of binding proteins?






34. What Freudian psyche component is described as x Reality - rationality - language basis?






35. When referring to a series circuit - what happens to resistance when a resistor is added?






36. Name the most common type or cause - Cyanotic heart disease






37. What is the term to describe the limited portion of an Ag that is recognized by an Ab?






38. What are the five hormones produced by Sertoli cells?






39. What are the two ketogenic AAs?






40. Do the following structures pick up stain from hematoxylin or eosin? - Fibrin






41. Name five causes for zero - order metabolism.






42. What three LTs are associated with bronchospasms and an increase in vessel permeability and vasoconstriction?






43. What Brodmann area is associated with x Visual association cortex?






44. What CNs arise from x The pons?






45. Using Laplace's relationship regarding wall tension - why is the wall tension in an aneurysm greater than in the surrounding normal blood vessel's wall?






46. What two vessels in fetal circulation have the highest PO2 levels?






47. 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.






48. What happens to prevalence as the number of long - term survivors increases?






49. What enzyme is deficient in hereditary protoporphyria?






50. How do the corticobulbar fibres of CN VII differ from the rest of the CNs?







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