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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. Do the duct or the acini cells of the pancreas secrete HCO3-?






2. What is the most common one? - Helminthic parasite worldwide






3. What organelle is responsible for ribosomal RNA synthesis?






4. Name the most common type or cause - Rectal bleeding






5. Name the most common type - Learning disability






6. What is the MCC of the following endocarditis scenarios? - Non - IV drug user






7. What serotonin reuptake inhibitor's major sexual side effect is priapism?






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






9. What are the two absolute requirements for the cytochrome P450 enzyme system?






10. What small - facultative gram - negative intracellular rod's transmission is associated with unpasteurized dairy products and undulant fever?






11. WBC casts in the urine






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






13. How many attacks are needed over how much time before panic disorder is diagnosed?






14. What disorder is associated with spider angiomas - palmar erythema - gynecomastia - testicular atrophy - encephalopathy - abnormalities in clotting factors - and portal HTN?






15. What is the only valve in the heart with two cusps?






16. Which class of antiarrhythmics are potassium channel blockers?






17. From what pharyngeal pouch is the following structure derived? - Superior parathyroid gland and ultimobranchial body of the thyroid






18. Name the valve abnormality based on the following criteria: x Diastolic murmur; increased preload - stroke volume - and aortic pulse pressure; decreased coronary blood flow; no incisura; and peripheral vasodilation






19. Are salivary secretions hypertonic - hypotonic - or isotonic?






20. What is the term to describe a decrease in the cell size and function usually associated with disuse?






21. A Japanese man has weight loss - anorexia - early satiety - epigastric abdominal pain - and a palpable left supraclavicular lymph node. On endoscopy you find a large - irregular ulcer with elevated margins on the lesser curvature of the stomach. What






22. What paraphilia is defined as x Deriving sexual pleasure from watching others having sex - grooming - or undressing?






23. What are the three signs of morphine overdose?






24. What is the most common lysosomal storage disorder?






25. What is the term for neurologic signs consistent with a cerebrovascular accident but lasting 24 hours with full recovery?






26. What are the three characteristics of ADHD?






27. Which M- protein strain of Streptococcus pyogenes is associated with acute glomerulonephritis?






28. What substrate is built up in Niemann - Pick disease?






29. What type of bilirubin is found in neonatal jaundice?






30. What is the size of a positive PPD test for the following? (Reactive) x Posttransplantation patient taking immunosuppressive agents






31. Is a subdural hematoma an arterial or venous bleed?






32. What is determined by the secondary structure of an AA?






33. In what compartment of the thigh is the profundus femoris artery found?

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34. What nucleus of the hypothalamus is the satiety center - regulating food intake?






35.






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






37. What mineral is a component of cytochrome a/a3?






38. Name the cancer associated with the following chemical agents. (Some may have more than one answer.) x Benzenes






39. Is cigarette smoking associated with transitional cell carcinoma of the bladder?






40. What type of erythema do you see in x Ulcerative colitis?






41. Which cestode in raw or rare beef containing cysticerci results in intestinal tapeworms?






42. What form of alcohol causes blindness?






43. If capillary hydrostatic pressure is greater than oncotic pressure - is filtration or reabsorption promoted?






44. What is the triad of Reiter syndrome?

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45. Name the most common type or cause - Nephrotic syndrome in children






46. Name the valve abnormality based on the following criteria: x Systolic murmur - increased preload and afterload - decreased aortic pulse pressure and coronary blood flow






47. What factors are needed for translocation in eukaryotes?






48. What do the following values indicate? - LD50






49. What is the most common one? - Site of a cerebral infarct






50. What type of damage to the kidneys is caused by drinking ethylene glycol (antifreeze)?