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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 are the five effects of insulin on fat metabolism?






2. A 20-year - old woman who was recently diagnosed with a sexually transmitted disease goes to the ER with a tender - painful - swollen - and erythematous knee (monoarticular). What organism is the likely culprit?






3. What is the most common one? - Type of melanoma






4. What are the three glycogenic organs?






5. What cell of the duodenum contains high concentrations of lysozymes and has phagocytic activity?






6. Is a marker for increased bone formation.






7. Calf pseudohypertrophy






8. What IL is essential for lymphoid cell development?






9. Which organism releases endotoxins prior to cell death?






10. Corticotropin - releasing hormone promotes the synthesis and release of what prohormone?






11. What endocrine abnormality is characterized by the following changes in PTH - Ca2+ - and inorganic phosphate (Pi)? - PTH increased - Ca2+ increased - Pi decreased






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






13. What drug is an M1- specific antispasmodic?






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






15. What nucleus - found in the intermediate zone of the spinal cord - sends unconscious proprioception to the cerebellum?

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16. What is the most common one? - Renal calculus type






17. Which subset of MEN syndrome is associated with the following? - Medullary carcinoma of the thyroid - pheochromocytoma - and mucocutaneous neuromas






18. With what stage of sleep are bruxisms associated?






19. What are the three branches of the inferior mesenteric artery?






20. Name the bony articulations of the following sites. Be specific - Shoulder






21. All Proteus species are...






22. Which medication requires an acidic gastric pH for activation to form a protective gel - like coating over ulcers and GI epithelium?






23. What mineral is required for cross - linking of collagen molecules into fibrils?






24. What branch off the vertebral artery supplies x The ventrolateral two - thirds of the cervical spinal cord and the ventrolateral part of the medulla?






25. What is secretin's pancreatic action?






26. What disease is X- linked recessive - is associated with eczema thrombocytopenia and an increased chance of developing recurrent infections - involves a decrease in serum IgM and in the T cell - dependent paracortical areas of the lymph nodes - and m






27. What is the term for new made - up words?

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28. Which integrin mediates adhesion by binding to lymphocyte function - associated Ag 1 (LFA-1) and MAC-1 leukocyte receptors?






29. What disease involves microcephaly - mental retardation - cleft lip or palate - and dextrocardia?






30. What are the three most common sites for left - sided heart embolisms to metastasize?






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






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






33. What right - to - left shunt occurs when only one vessel receives blood from both the right and left ventricles?






34. Name the eukaryotic RNA polymerase based on the following: x Synthesizes hnRNA - mRNA - and snRNA






35. What happens to dopamine levels when we awaken?






36. What is used as an index for both adrenal and testicular androgens?






37. What variant of polyarteritis nodosa is associated with bronchial asthma - granulomas - and eosinophilia?






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






39. Abs to what hepatitis B Ag provide immunity?






40. What organelle is responsible for ribosomal RNA synthesis?






41. What is the term for the negative resting membrane potential becoming more negative?






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






43. What artery turns into the dorsalis pedis when it crosses the extensor retinaculum?






44. Which genus of dermatophytes is associated with the following sites of infection? - Nails and skin only






45. Objective tests that base the result of the examination on a preset standard use what form of reference?






46. Testing of a drug in a small group of volunteers without the disease is a component of which phase of clinical drug testing?






47. What is the rule of one - third regarding muscle type of the esophagus?






48. Dopamine antagonists are...






49. What scale has a true zero point - graded into equal increments - and also orders them?






50. What is the rate - limiting step of the following? - Fatty acid synthesis