Test your basic knowledge |

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. Name the antidote - Atropine






2. What happens to total and alveolar ventilation with x Increased depth of breathing?






3. How many months in How many years must a person cough with copious sputum production for the diagnosis of chronic bronchitis to be made?






4. What substrate gets built up in Gaucher's disease?






5. What is the pyrimidine intermediate that joins PRPP (5- Phosphoribosyl -1- Pyrophosphate)?






6. What is the essential reservoir host for Toxoplasma gondii?






7. What syndrome has elevated FSH and LH levels with decreased testosterone levels and 47XXY karyotype?






8. The surge of what hormone induces ovulation?






9. Is DM a contraindication to use of a Beta- blocker in a patient who is having an MI?






10. What vitamin is a cofactor of aromatic amino acid decarboxylase and decreases the efficacy of L- dopa if used concomitantly?






11. In the elderly - what happens to total sleep time - percentage of REM sleep - and percentage of NREM sleep?






12. Name the ventricular muscle membrane channel: x Closed at rest; depolarization causes channels to open quickly; will not respond to a second stimulus until cell is repolarized.






13. What is the most common one? - Viral cause of myocarditis






14. In which region of the lung are 75% of the pulmonary infarcts seen?






15. The lack of dopamine production in the substantia nigra leads to the ______________ - characteristically seen in patients with Parkinson's disease.






16. What are the four functions of saliva?






17. What paraphilia is defined as x Deriving sexual pleasure from other peoples' pain?






18. What is the most common one? - Germ cell tumor of the ovary






19. What is the drug of choice for treating ADHD?






20. What rare disorder presents as a large - hard - irregular thyroid gland due to fibrous proliferation of connective tissue in the thyroid gland and extends to adjacent structures?






21. What CNS tumor arises from Rathke's pouch?






22. What enzyme of the purine salvage pathway is deficient in the following? - Lesch - Nyhan syndrome






23. What happens to the resistance of the system when a resistor is added in a series?






24. What is the term for taking an mRNA molecule and arranging the AA sequence forming a protein?






25. In which quadrant is breast cancer most commonly found?






26. Name the most common type or cause - Nephrotic syndrome






27. How do elevated blood glucose levels decrease GH secretion? (Hint: what inhibitory hypothalamic hormone is stimulated by IGF-1?)






28. Blue sclera






29. What is found in the R group if the AA is acidic? Basic?






30. Name the antimicrobial agent whose major side effect is listed - Grey baby syndrome






31. What cancer is particularly likely to affect English chimney sweeps?






32. Damage to what nerve will give you winged scapula?






33. In What area of the brain can an excess of dopamine lead to psychotic symptoms?






34. What is the most energy- demanding phase of the cardiac cycle?






35. What is the most common one? - Valve abnormality associated with rheumatic fever






36. Which leukotriene is chemotactic for neutrophils?






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






38. What is the end product of purine catabolism?






39. What is the term for the total percentage of correct answers selected on a screening test?






40. What is the tetrad of tetralogy of Fallot?






41. What aphasia is seen as an inability to comprehend spoken language and speaking in a word salad?






42. What two lysosomal storage diseases have cherry- red spots on the retina?






43. What is the term for failure of the testes to descend into the scrotum?






44. What is the term for a substance secreted by a leukocyte in response to a stimulus?






45. Used in the treatment of barbiturate overdose.






46. In regard to motor development during infancy - choose the motor response that happens first - Release or grasp






47. What are the five AAs that are both ketogenic and glucogenic?






48. Are always open.






49. What form of arthritis is associated with calcium pyrophosphate crystals?






50. Where are the preganglionic neuron cell bodies - the CNS or the PNS?