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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. Which two antipsychotic drugs create a high risk for developing extrapyramidal syndrome (EPS) side effects?






2. What substance is used to test platelets' response in patients with von Willebrand disease?






3. What type of bias is it when the information is distorted because of the way it is gathered?






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






5. What is the major Ig of the secondary immune response in the mucosal barriers?






6. What is the best measure of total body vitamin D if you suspect a deficiency?






7. Name the antidote - Copper






8. What testicular tumor of infancy is characterized by elevated - fetoprotein levels and Schiller - Duval bodies?






9. What female follicular cell is under LH stimulation and produces androgens from cholesterol?






10. If you double the infusion rate of a drug - how long will it take to reach steady state?






11. What two cell lines of the immune system do not belong to the innate branch?






12. What is the term for air in the pleural space?






13. What malignant bone tumor is associated with familial retinoblastoma?






14. What three carcinomas are associated with EBV?

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15. What is the lymphatic drainage of the pelvic organs?






16. What is the MCC of the following endocarditis scenarios? - Following biliary infections






17. Name the lipoprotein based on the following characteristics - apo A-1 - apo E - apo C- II






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






19. What is the name of the T cell - rich area of the lymph node?






20. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x erb -1






21. How many ATPs are produced from cytoplasmic NADH oxidation using the glycerol phosphate shuttle?






22. Name the T- cell CD marker: x Expressed on all T cells and is needed as a signal transducer for the T cell receptor






23. Name the most common type or cause - Acute metal poisoning in the United States






24. What tract is responsible for voluntary refined movements of distal extremities?






25. What area of the hypothalamus is the feeding center?






26. What leukemia is associated with four - leaf - clover lymphocytes on peripheral blood smear?






27. Does the left or right vagus nerve innervate the SA node?






28. What is the T- cell area of the spleen?






29. What is the label given to an individual whose IQ is x 110 to 119






30. What type of hepatitis has the highest mortality rate among pregnant women?






31. What adrenergic receptors use inositol triphosphate (IP3) and diacylglycerol (DAG) for their second messenger system?






32. Which subset of MEN syndrome is associated with the following? - Parathyroid - pancreatic - and pituitary gland tumors and Zollinger - Ellison syndrome






33. Does physiologic splitting of the first heart sound occur during inspiration or expiration? Why?






34. What protein deficiency results in respiratory distress syndrome of newborns?






35. Which potassium - sparing drug is an aldosterone receptor antagonist ?






36. What is the term for the proportion of a drug that reaches systemic circulation?






37. What vessel does the right gonadal vein drain into?






38. What is the only nonmotile pathogenic Clostridium species?






39. What is the most common one? - Primary malignant tumor of the lungs






40. What is the term for the number of new events occurring in a population divided by the population at risk?






41. What DNA viral disease is associated with aplastic crisis in patients with sickle cell anemia?






42. What is the primary risk factor for suicide?






43. What papillae are touch receptors on the tongue and send their sensations via CN V3 (mandibular division)?






44. What is the primary end product of pyrimidine synthesis?






45. Of what serotonin receptor is sumatriptan an agonist?






46. The first sensory neuron is in the dorsal root ganglia. It carries ascending sensory information in the dorsal root of a spinal nerve - eventually synapsing with second sensory neuron. In the brainstem (DCML) and the spinal cord (spinothalamic) the s






47. What catecholamine - hypersecreting tumor - a secondary cause of HTN - results in headache - diaphoresis - anxiety - tachycardia - and palpitations?






48. When a person goes from supine to standing - what happens to the following? - Cardiac output






49. Name these cluster A personality disorders: x Odd - strange; has magical thinking; socially isolated - paranoid - lacks close friends; has incongruous affect






50. What is the only enzyme in the body that uses N-5- methyl folate?