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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. Patients with _______________ have B cells in the peripheral blood.






2. The left subclavian artery is a branch of What artery?






3. Name the thalamic nucleus based on its input and output - Input from medial lemniscus and the spinocerebellar tracts; output to the primary somatosensory cortex






4. What hormone's release is strongly associated with stage 4 sleep?






5. When a person goes from supine to standing - what happens to the following? - Dependent venous blood volume






6. What enzyme of the TCA cycle catalyzes the production of the following: x NADH (hint: 3 enzymes)






7. What form of anemia is diagnosed with sucrose lysis test and Ham test?






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






9. Has analgesic and antipyretic activities but lacks anti - inflammatory effects.






10. What cells of the nephron function as sodium concentration sensors of the tubular fluid?






11. Name the macrophage based on its location: x Epidermal macrophages






12. From What do catalase - superoxide dismutase - and glutathione peroxidase defend the cell?






13. Caf






14. Which mycoplasma species is associated with urethritis - prostatitis - and renal calculi?






15. Name the ventricular muscle membrane channel: x Closed at rest; depolarization causes channels to open quickly; will not respond to a second stimulus until cell is repolarized.






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






17. What vessels carry deoxygenated blood into the lungs from the right ventricle?






18. What vitamin requires IF for absorption?






19. What vein drains the lower third of the thoracic wall?






20. What is released from the mitochondria to trigger apoptosis?






21. What three AAs are used to synthesize the purine ring?






22. Name the reaction that appears in babies who are temporarily deprived of their usual caretaker. (This reaction usually begins around 6 months of age - peaks around 8 months - and decreases at 12 months.)






23. What is the first epidermal layer without organelles and nuclei






24. What term is defined as a patient unconsciously placing his or her thoughts and feelings on the physician in a caregiver or parent role?






25. Which organism causes Weil's disease?






26. Is marital satisfaction higher for couples with or without children?

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27. Name the primary vesicle the following structures are derived from (proencephalon - mesencephalon - or rhombencephalon) - Cerebral aqueduct






28. What do the risk factors late menopause - early menarche - obesity - nulliparity - excessive estrogen - genetic factor p53 - and brc - abl characterize?






29. What is the term for gastric ulcers associated with increased intracranial pressure?

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30. What complex of the ETC contains Cu2+?






31. How early can a pregnancy be detected by hCG assays in the blood? In urine?






32. Name the Plasmodium species based on the following information: No persistent liver stage or relapse; blood smear shows multiple ring forms and crescent - shaped gametes; irregular febrile pattern; associated with cerebral malaria






33. What connects the lateral ventricles to the third ventricle?






34. Fact without feeling (la belle indiff






35. What embryonic structure forms the adult female structures? - Uterine tube - uterus - cervix - and upper third of the vagina






36. At What age does a child develop x Endogenous smile?






37. Does Cushing syndrome or Cushing disease have elevated ACTH levels and cortisol suppression with dexamethasone?

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38. What is the term to describe the increased rate of secretion of adrenal androgens at the onset of puberty?






39. What AA is a precursor of the following substances? - Serotonin






40. What is the term for nonneoplastic abnormal proliferation of cell size - shape - and cellular organization?






41. What nucleus supplies the preganglionic parasympathetic fibers to the ciliary ganglion?






42. What is the term to describe the limited portion of an Ag that is recognized by an Ab?






43. What is the term for the amount of a drug that is needed to produce the desired effect?






44. What pathway of the coagulation cascade is activated when it is in contact with foreign surfaces?






45. How many months in How many years must a person cough with copious sputum production for the diagnosis of chronic bronchitis to be made?






46. How do delusions - illusions - and hallucinations differ?






47. Name the MCC - Aspiration pneumonia in an alcoholic






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






49. Familial hypercholesteremia is due to a mutation in the LDL receptor gene. What chromosome carries it?






50. What paraphilia is defined as x Sexual urges toward children?







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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