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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. Lucid interval






2. What cell is under control of FSH and testosterone; secretes inhibin - MIF - and androgen - binding protein; and phagocytizes the excess cytoplasm of the spermatid?






3. What part of the inner ear contains the gravity receptors for changes in the position of the head?






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






5. On the venous pressure curve - What do the following waves represent? - V wave?






6. What level of mental retardation is characterized by x Being self - supportive with minimal guidance and able to be gainfully employed (includes 85% of the mentally retarded)?






7. Name the antidote - Copper






8. What axis I disorder is characterized by pronoun reversal - preference for inanimate objects - obliviousness to the external environment - lack of separation anxiety - and abnormalities in language development?






9. Curschmann spirals






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






11. Is the hydrophobic or hydrophilic end of the phospholipids of the cell membrane facing the aqueous environment?






12. What is the term for precipitation of calcium phosphate in dying or necrotic tissue?






13. 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?






14. Which sedative - hypnotic is contraindicated for patients taking warfarin?






15. What protein of the HIV virus does ELISA detect to determine whether a patient is HIV positive?






16. During What embryonic week does the intraembryonic coelom form?






17. What has occurred to the renal arterioles based on the following changes in the GFR - RPF - FF - and glomerular capillary pressure? - GFR ? - RPF ? - FF normal - capillary pressure ?






18. Does the heart rate determine the diastolic or systolic interval?






19. What is the key issue surrounding teenagers' maturation?






20. Clue cells are associated with which organism that causes vaginal discharge?






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






22. Codman triangle on radiograph






23. Patients with ___________ have no Barr bodies.






24. What is the region of the fallopian tube where fertilization most commonly occurs?






25. What non - spore - forming gram - positive aerobic rod produces bull neck - sore throat with pseudomembranes - myocarditis - and sometimes respiratory obstructions?






26. What enzyme system is the most common form of phase II biotransformation?






27. What HIV enzyme produces a dsDNA provirus?






28. What phase of the cell cycle are the following antineoplastic agents specific for? - Bleomycin






29. Name the type of hypersensitivity reaction based on the following properties - Circulating Ab - Ag immune complexes deposited in the tissue result in neutrophil attraction and the release of lysosomal enzymes.






30. What two drugs block dopa - decarboxylase in the periphery to decrease the conversion of L- dopa to dopamine?






31. Name the RNA subtype based on the following: x Carries AA to the ribosome for protein synthesis






32. What is the most common one? - Neurotransmitter in the brain






33. What hormone - produced by the granulose cell - stimulates the endometrium to enter the proliferative phase?






34. What is the most common one? - Tumor on sun - exposed sites






35. The DSM- IV- TR is scored on the basis of five axes of diagnosis. In What axis would you place x Psychosocial and environmental problems (stressors)?






36. What cancer is particularly likely to affect English chimney sweeps?






37. What is the effect of insulin on intracellular K+ stores?






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






39. What muscle keeps the stapes taut against the oval window?






40. Name the most common type or cause - Chronic metal poisoning






41. What GN is highly associated with hepatitis B and C infections?






42. What disease is associated with the HLA- DR2 and HLA- DR3 alleles






43. Name the Hgb - O2 binding site based on the following information: x Greatest affinity of the three remaining sites for attachment; requires PO2 levels of 26 mm Hg to remain attached






44. In what stage of sleep is GH secreted?






45. What are the primary neurotransmitters at the following sites? - Brainstem cells






46. What is the most common one? - Site of pancreatic cancer






47. What two regions of the vertebral column are considered primary curvatures?






48. What is the name for failure of the allantois to close - resulting in a urachal fistula or sinus?






49. What two Beta2- agonists are used to produce bronchodilation?






50. What nerve roots constitute the cervical plexus?