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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 foramen must be traversed for entry into the lesser peritoneal sac?






2. What factors are needed for translocation in eukaryotes?






3. Do the following structures pick up stain from hematoxylin or eosin? - Nucleoli






4. What is the most common one? - Vasculitis






5. Where is most of the airway resistance in the respiratory system?






6. What type of PUD is classically described by the onset of burning epigastric pain 1 to 3 hours after eating that is relieved by food?






7. What is the term for the round intracytoplasmic eosinophilic inclusions containing ?- synuclein found in the dopaminergic neurons of the substantia nigra?






8. What glycogen storage disease is due to the following enzyme deficiencies? - Lysosomal glucosidase (acid maltase)

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9. What causes slow writhing movements (athetosis)?






10. What is the order of fuel use in a prolonged fast?






11. What bones make up the acetabulum?






12. What is the label given to an individual whose IQ is x 90 to 109






13. What is the male - to - female ratio for committing suicide?






14. What breast pathology involves malignant cells with halos invading the epidermis of the skin?






15. What cell membrane structure increases the surface area of a cell and has actin randomly assorted within its structure?






16. What small gram - negative facultative intracellular rod is transmitted to human host by Dermacentor tick bite?






17. Are hemorrhagic cerebral infarcts more commonly associated with embolic or thrombotic occlusions?






18. Name these immature defense mechanisms: x Psychic feelings converted to physical symptoms






19. What T- cell surface projection recognizes and reacts to foreign Ags (presented by APCs)?






20. Name the RNA subtype based on the following: x Only type of RNA that is translated






21. How many bronchopulmonary segments are on the right lung? Left lung?






22. What tetracycline is associated with hepatotoxicity?






23. Has a sodium - conserving action in the distal colon.






24. What three Beta- blockers are used in the treatment of glaucoma?






25. What is the drug of choice for early Parkinson's disease?






26. What syndrome occurs when pelvic inflammatory disease ascends to surround the liver capsule in violin string adhesions?






27. What is the primary screening test used to detect HIV- infected individuals? Confirmatory test?






28. What embryonic structure forms the adult female structures? - Gartner's duct






29. Where in the spinal cord are the presynaptic opioid receptors?






30. Anatomical and alveolar dead spaces together constitute what space?






31. What chromosome 4 - AD disorder is a degeneration of GABA neurons in the striatum of the indirect pathway of the basal ganglia?

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32. Name the most common type - Learning disability






33. What is the name of the postganglionic parasympathetic ganglion that innervates x The submandibular and sublingual glands?






34. What is the term for pupils that react normally to accommodation but have bilateral loss of constriction in response to light?






35. What glycolytic enzyme has a high Vmax - high Km - and low affinity for glucose?






36. What is the most important determinant of drug potency?






37. What two post - transcriptional enzymes in collagen synthesis require ascorbic acid to function properly?






38. What syndrome that is due to an adrenal gland adenoma produces excess aldosterone resulting in HTN - hypokalemia - and low rennin levels?






39. What is the main type of cell involved in cellular immunity?






40. What GI pathology is associated with a positive string sign - an increase in the number of bloody stools - RLQ pain - skip lesions - terminal ileum most commonly affected - occurrence in women more than men - and an increased thickness of the bowel?






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






42. What body fluid preferentially breaks down esters?






43. What two factors determine the clearance of a substance?






44. A marfanoid patient presents with tearing retrosternal chest pain radiating to her back. What is your first diagnosis?






45. What is the most common one? - Pituitary adenoma






46. Notching of the ribs - seen on chest radiograph in patients with postductal coarctation of the aorta - is due to collateralization of What arteries?






47. What CNs are affected if there is a lesion in x The upper medulla?






48. Name the most common type or cause - UTIs






49. What is the stimulus for the classical pathway activation?






50. Initiates rhythmic contractions associated with labor.