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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 is the most common one? - Cardiac anomaly in children






2. What disorder is associated with decreased platelet count - prolonged PT and PTT - decreased fibrinogen - and increased fibrin split products (D- dimers)?






3. What artery supplies the right atrium - right ventricle - sinoatrial and atrioventricular nodes?






4. At what vertebral levels does the aortic arch begin and end?






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






6. What cell type is commonly elevated in asthma?






7. What potentially lethal side effect of clozapine should be monitored with frequent blood drawing?






8. What happens to diastolic and systolic intervals with an increase in sympathetic activity?






9. What disorder causes joint stiffness that worsens with repetitive motion - crepitus - effusions - and swelling and commonly affects the knees - hips - and spine?






10. In what form is excess folate stored in the body?






11. Name the most common type or cause - Restrictive cardiomyopathy






12. What is the term for the load on a muscle in the relaxed state?






13. 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






14. Councilman bodies






15. What enzyme catalyzes the rate - limiting step in fatty acid synthesis?






16. What antitubercular agent causes loss of red - green visual discrimination?






17. What type of scale is graded into equal increments - showing not only any difference but how much?






18. What pneumoconiosis is associated with exposure to the following occupations or materials? - Shipyards - brake linings - insulation - and old building construction






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






20. How many ATPs per glucose are produced by pyruvate dehydrogenase?






21. What enzyme of cholesterol synthesis is inhibited by the statins?






22. Patients with ___________ have no Barr bodies.






23. Name the area of the cerebral cortex with the function described: x Intellectual processing of sensory information - with the left (dominant) processing verbal information - the right processing visual - spatial orientation






24. Why is the apex of the lung hypoventilated when a person is standing upright?






25. What is the site of action of the following? - Aldosterone antagonists






26. Which virus is treated with the monoclonal antibody palivizumab?






27. What are the three causes of transudate?






28. What is the origin of the polyuria if a patient is dehydrated and electrolyte depleted?






29. What are the five branches of the superior mesenteric artery?






30. What renal side effect is commonly seen in patients taking lithium?






31. What foci of fibrinoid necrosis are surrounded by lymphocytes and macrophages throughout all the layers of the heart?






32. What is the term for flexion of the PIP and extension of the DIP joints seen in rheumatoid arthritis?






33. What is the second leading cause of death in children aged 1 to 14 in the United States?






34. Which of the following characteristics accurately describe fungi - bacteria - viruses - or parasites? - Small prokaryotic cells; no histones; 70S ribosomes; no sterols in cell membrane; peptidoglycans in cell wall; replicate by binary fission






35. What area of the limbic system is responsible for attaching emotional significance to a stimulus?






36. What area of the small intestine is characterized by Peyer's patches?






37. What type of test asks a patient to draw a scene - attempting to find out the individual's unconscious perceptions in his or her life?






38. How many ATPs are hydrolyzed every time a skeletal muscle cross - bridge completes a single cycle?






39. What a1- agonist is used to treat paroxysmal atrial tachycardia with hypotension?






40. What is the MCC of cancer mortality in males and females?






41. Name the type of mutation: x The deletion or addition of a base






42. Describe What type of fluid is either gained or lost with the following changes in body hydration for the ECF volume - ICF volume - and body osmolarity - respectively: x ECF - increase; ICF - decrease; body - increase






43. What abdominal muscle runs horizontally - contributes to the posterior rectus sheath - and contributes to form the conjoint tendon?






44. What is the only way to increase O2 delivery in the coronary circulation?






45. Name the type of hypersensitivity reaction based on the following properties - Reaction - mediated by sensitized T- cells






46. What family do the following viruses belong to? - Measles






47. What mineral deficiency in children is associated with poor growth and impaired sexual development?






48. What is the only site in the body that uses M1 receptors?






49. What is the most common form of elderly abuse?






50. Is jugular venous distention a presentation of isolated left or right heart failure?







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