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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 thyroid abnormality has the following? - TRH increased - TSH decreased - T4 decreased






2. Results in vitamin B12 deficiencies.






3. What tract carries unconscious proprioceptive information from the Golgi tendon organs and muscle spindles to the cerebellum - helping monitor and modulate muscle movements?






4. What are the five K






5. What are the three platelet aggregating factors?






6. What AR syndrome is due to a deficiency of glycoprotein Ib - resulting in a defect in platelet adhesion?






7. There is a strong ________ between IQ and academic achievement.






8. What facultative intracellular fungus is associated with hepatosplenomegaly?






9. What is the major pulmonary side effect of






10. Name the laryngeal muscle described by the following: x Pulls the arytenoids cartilages closer to the thyroid - relaxing the vocal ligaments and thereby decreasing the pitch






11. What retrovirus is associated with adult T- cell leukemia?






12. Of what serotonin receptor is sumatriptan an agonist?






13. Name four chemotactic factors for neutrophils.






14. All of the hormones in the hypothalamus and anterior pituitary gland are...






15. What viral infection is known to cause intracerebral calcifications?






16. The dose of which second - generation sulfonylurea agent must be decreased for patients with hepatic dysfunction?


17. Which protozoal parasitic vaginal infection produces a positive whiff test with KOH staining?






18. What is the term for RBC fragments?






19. What is the term for the speckled appearance of the iris in patients with Down syndrome?






20. What is the start codon - and What does it code for in eukaryotes? Prokaryotes?






21. What Ig is the major protective factor in colostrum?






22. Leading to gallstones and steatorrhea.






23. What pattern of inheritance does G-6- PD deficiency follow?






24. Are sexually abused females more likely to have learning disabilities than the general population?






25. What is the most common one? - Cardiac tumor of infancy






26. Which class of antiarrhythmics are potassium channel blockers?






27. To What is the diffusion rate indirectly proportional?






28. What is the term for the collapse of the vertebral body due to TB?






29. If no fertilization occurs - How many days after ovulation does the corpus luteum begin to degenerate?






30. What is the MCC of death in black males aged 15 to 24?






31. Do the following structures pick up stain from hematoxylin or eosin? - Thyroid colloid






32. With what stage of sleep are night terrors associated?






33. What hereditary bone disorder is due to decreased osteoclast function - resulting in thick - sclerotic bones that fracture easily?






34. Which IL increases IgA synthesis?






35. What diseases are associated with the HLA- B27 allele


36. What is the neurotransmitter at the K- receptor?






37. In what stage of sleep is it easiest to arouse a sleeping individual?






38. What is the term for failure of the testes to descend into the scrotum?






39. What cytoplasmic pathway produces NADPH and is a source of ribose 5- phosphate?






40. What tetracycline is associated with vestibular toxicity?






41. What is the term for the copper corneal deposits found in Wilson's disease?






42. What is the major hormone produced in the following areas of the adrenal cortex? - Zona glomerulosa






43. What autoimmune syndrome is characterized by keratoconjunctivitis - corneal ulcers - xerostomia - and an increased risk of high - grade B- cell lymphomas? What two Ab tests are used in making the diagnosis?






44. What organism is associated with the following types of diarrhea? Day care - associated diarrhea in infants






45. What AR CNS disorder presents early in childhood with gait ataxia - loss of deep tendon reflexes - impaired vibratory sensation - hand clumsiness - and loss of position sense?






46. Are used in the management of an acute asthmatic attack.






47. Are the following parameters associated with an obstructive or restrictive lung disorder: decreased FEV1 - FVC - peak flow - and FEV1/FVC; increased TLC - FRC - and RV?






48. What Hgb - derived endogenous pigment is found in areas of hemorrhage or bruises?






49. What Beta- blocker is also an a - blocker?






50. Used in the treatment of barbiturate overdose.