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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. To What does failure to resolve separation anxiety lead?






2. What cerebral lobes are most commonly affected in herpes encephalitis?






3. How can you differentiate vitamin K from vitamin C deficiency by bleeding time and PT levels?






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

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5. What is the term for the negative resting membrane potential moving toward threshold?






6. Name the structure that enters or exits the following foramina: x Foramen spinosum






7. What is the DOC for the following protozoal infections? - Trichomoniasis






8. Is a marker for increased bone formation.






9. What pineal hormone's release is inhibited by daylight and increased dramatically during sleep?






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






11. What is the term for thymic induction of T cells with high - affinity Ag receptors for self that are programmed to undergo apoptosis?






12. What immunologic test checks for a reaction between Abs and a particular Ag? (hint: ABO typing)






13. From Where is the energy for gluconeogenesis derived?






14. What is the DOC for coccidioidomycosis?






15. What four conditions result in secondary hyperaldosteronism?






16. If the P value is less than or equal to .05 - What do you do to the null hypothesis?






17. What five things are checked in the APGAR test?






18. What operant conditioning therapy or modification is described as x Stopping the reinforcement that is leading to an undesired behavior?






19. What cytokine do Th1 cells secrete to inhibit Th2 cell function?






20. What thyroid enzyme is needed for oxidation of I- to I'?






21. Name the hypochromic microcytic anemia based on the following laboratory values - Decreased iron - TIBC - and percent saturation; increased ferritin






22. In regard to motor development during infancy - choose the motor response that happens first - Proximal or distal progression






23. What is the MCC of the following meningitides? - In adults






24. At what stage of cognitive development (according to Piaget) do children x See death as irreversible?






25. From What aortic arch are the following structures derived?






26. What are two causes of diffusion impairment in the lungs?






27. Which of the following characteristics accurately describe fungi - bacteria - viruses - or parasites? - Acellular; some are enveloped; replicate within the host cell; no cell walls






28. What component of the inner ear x Contains endolymph and responds to head turning and movement?






29. In what layer of the epidermis is melanin transferred from melanocytes to keratinocytes?






30. Name the type of exudate - given the following examples - Meningococcal infection






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






32. What is the term for hypercalcemia resulting in precipitation of calcium phosphate in normal tissue?






33. Are the following responses associated with histamines H1 or H2 receptor activation? - Gastric acid secretion






34. Name the pattern of genetic transmission: both M and F are affected; M- to - M transmission may be present; both parents must be carriers; the trait skips generations; two mutant alleles are needed for disease; and affected children may be born of un






35. What are the three signs of morphine overdose?






36. Name the primary vesicle the following structures are derived from (proencephalon - mesencephalon - or rhombencephalon) - Medulla






37. What vasculitis affects a 30-year - old Asian female having visual field deficits - dizziness - decreased blood pressure - and weakened pulses in the upper extremities?






38. What component of the ETC is inhibited by the following? - Cyanide






39. Name the area of the cerebral cortex affected by the description of the effects - symptoms - and results of the lesion - Denies being blind - cortical blindness

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40. What enzyme is deficient in the following glycogen storage disease? - von Gierke's disease






41. What modified smooth muscle cells of the kidney monitor BP in the afferent arteriole?






42. What is the name of a thin brown ring around the outer edge of the cornea - seen in Wilson's disease?






43. What is the term for how well a drug produces its desired response?






44. What is the drug of choice for steroid - induced osteoporosis?






45. Is CO2 a perfusion - or diffusion - limited O2 gas?






46. What urinary metabolite is increased in patients with carcinoid syndrome?






47. Name the most common cause - Infectious pancreatitis






48. What is the bioactive form of thyroid hormone?






49. What are the four functions of saliva?






50. A patient goes to the ER with abdominal cramps - vomiting - diarrhea - and sweating less than 24 hours after eating potato salad at a picnic; What is the most likely responsible organism?