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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 two forms of insulin - if mixed together - precipitate zinc?






2. What pattern of genetic transmission affects only M and has no M- to - M transmission - and mother is usually an unaffected carrier?






3. What disorder - experienced more than half of the time for a 6- month period - is described as being fearful - worrisome - or impatient and having sleep disturbances - poor concentration - hyperactivity - and an overall sense of autonomic hyperactivi






4. What enzyme of the TCA cycle catalyzes the substrate level phosphorylation?






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






6. What is the term for a schizophrenic episode lasting longer than 30 days with full return to former functioning capacity?






7. Require NaCl in its growth medium.






8. What determines the Vmax of skeletal muscle?

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9. Prolactin levels can serve as a rough indicator of...






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






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






12. What virus is associated with both nasopharyngeal carcinoma and Burkitt lymphoma?






13. Name the most common type or cause - Noniatrogenic hypothyroidism in the United States






14. What component of the corneal reflex is lost in a CN VII deficit?






15. What is the MCC of the following meningitides? - In those 12 months to 6 years of age






16. What statistical method do you use when analyzing x Cohort studies?






17. What is the precursor of all sphingolipids?






18. Where does the parotid (Stensen's) duct enter the oral cavity?






19. What are the three stages that children aged 7 months to 5 years go through when they are separated from a primary caregiver for a long time?






20. 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.






21. Name the associated chromosomal translocation - CML






22. What is the name of the hypothesis you are trying to prove?






23. What happens to the following during skeletal muscle contraction? - Actin and myosin lengths






24. What Ab is an indication of recurrent disease for hepatitis?






25. What nematode is known as pinworms? What is the treatment?






26. What enzyme of the purine salvage pathway is deficient in the following? - Lesch - Nyhan syndrome






27. What disease is a cavitation of the spinal cord causing bilateral loss of pain and temperature at the level of the lesion?






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






29. Name the antimicrobial agent whose major side effect is listed - CN VIII damage (vestibulotoxic)






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






31. Name the macrophage based on its location: x Bone macrophages






32. In what condition do you see dimpling on the kidney's surface?






33. Name the phase of the eukaryotic cell cycle: x Period of cellular growth (translation and transcription) before DNA synthesis






34. Which parasitic organism - when it crosses the placenta - results in intracerebral calcifications - chorioretinitis - microcephaly - hydrocephaly - and convulsions?






35. 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?






36. Why should opioid analgesics be avoided for patients with head trauma?






37. What form of penicillin is stable in acid environments?






38. What are the three stimuli that result in the reninangiotensin - aldosterone secretion?






39. If a drug is ionized - is it water or lipid soluble? Can it cross a biomembrane?






40. Which of the following Enterobacteriaceae family members






41. What leukemia affects a 4-year - old child with 3 months of fever - fatigue - generalized lymphadenopathy - CNS involvement - hepatosplenomegaly - bleeding - and platelet count below 100 - 000?






42. What lower extremity nerve is described by the following motor loss? - Loss of eversion; inversion - dorsiflexion - and plantarflexion of the foot






43. Is spousal abuse a mandatory reportable offense?






44. Name the ventricular muscle membrane channel: x Closed at rest; depolarization causes channels to open slowly






45. What syndrome is associated with the following brainstem lesions? - Contralateral corticospinal and medial lemniscus tract deficits and an ipsilatera medial strabismus secondary to a lesion in CN VI






46. What pneumoconiosis is associated with exposure to the following occupations or materials? - Aerospace industry - nuclear reactors






47. Which nicotinic receptor antagonist is inactivated to laudanosine?






48. What structure of the knee is described thus? - Prevents anterior displacement and has lateral - to - medial attachment on the tibia






49. What is the most common one? - Form of muscular dystrophy






50. What is the DOC for hyperprolactinemia?