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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 cancer associated with the following oncogenes. (Some may have more than one answer) x CDK4






2. In a skeletal muscle fiber - the interior of the T- tubule is...






3. What is the size of a positive PPD test for the following? (Reactive) x Patient with AIDS






4. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x hst -1 and int -2






5. Name the most common cause - A cold in the spring and fall






6. Which centrally acting a2- adrenergic agonist is used in the treatment protocol of opioid withdrawal?






7. What is the most likely organism causing cellulitis in a patient who was cut by an oyster shell?






8. Are white rami preganglionic or postganglionic fibers?






9. What is the name of the ovarian cyst containing ectodermal - endodermal - and mesodermal elements (i.e. - skin - hair - teeth and neural tissue)?






10. 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 - increase; ICF - decrease; body - increase






11. What cells of the adrenal gland are neural crest derivatives?






12. How many days after the LH surge is ovulation?






13. The proportion of truly diseased persons in the screened population who are identified as diseased refers to?






14. Call - Exner bodies






15. What is the karyotype in Turner syndrome?






16. What are the two leading causes of cancer - related death in men?






17. Do the PO2 peripheral chemoreceptors of the carotid body contribute to the normal drive for ventilation?






18. With an increase in arterial systolic pressure - what happens to x Vessel compliance?






19. When a person goes from supine to standing - what happens to the following? - BP






20. What are the two exceptions to the rule 'all cocci are gram positive'?






21. Name the antimicrobial agent whose major side effect is listed - Auditory toxicity






22. What two enzymes are vitamin B12- dependent






23. What malignant neoplasm of the bone has a soap bubble appearance on radiograph?






24. Is encapsulated.






25. What is the most energy- demanding phase of the cardiac cycle?






26. What oral hypoglycemic agent stimulates pancreatic Beta- cell release of insulin and is given just prior to meals because of its short half - life?






27. Which thalamic nucleus receives auditory input from the inferior colliculus?






28. What toxicities are caused by the following agents? - Methoxyflurane






29. What period is described when a larger - than - normal stimulus is needed to produce an action potential?






30. What is the only diuretic that works on the blood side of the nephron?






31. A urethral swab of a patient shows gram - negative diplococci in PMNs; what organism do you diagnose?






32. What oxygen - dependent killing enzyme requires hydrogen peroxide and halide (Cl -) to produce hypochlorous acid?






33. What enzyme of the TCA cycle catalyzes the production of the following: x GTP






34. Which type of hepatitis can cause hepatocellular carcinoma?






35. Based on operant conditioning - What type of reinforcement is described when x Removing a stimulus reinforces a behavior?






36. What enzyme is essential for the conversion of CO2 to HCO3-?






37. The inferior mesenteric artery drains into it.






38. What is the term for normal cellular genes associated with growth and differentiation?






39. What viral infection in patients with sickle cell anemia results in aplastic crisis?






40. What condition results in the following CSF results? - Opening pressure 100 mm H2O; 120 WBCs (90% lymphocytes); normal glucose levels; protein 17






41. What is the most common one? - Proliferative abnormality of an internal organ






42. Name the thalamic nucleus based on its input and output - Input from globus pallidus and substantia nigra; output to primary motor cortex






43. Which type of cerebral herniation is associated with CN III palsy?






44. What are the three components of amyloid?






45. What is the term for granuloma at the lung apex in TB?






46. Name the thalamic nucleus based on its input and output - Input from inferior colliculus; output to primary auditory cortex






47. What is the term for a large VSD that leads to pulmonary HTN - RVH - and cyanosis due to right - to - left reversal of the shunt?






48. What component of the inner ear x Contains perilymph and responds to angular acceleration and deceleration of the head?






49. 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






50. What projective test asks the patient to tell a story about What is going on in the pictures - evaluating the conflicts - drives - and emotions of the individual?