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. In What area of the GI tract are water - soluble vitamins absorbed?






2. What is the only pharyngeal muscle not innervated by CN X?






3. 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 - decrease; ICF - decrease; body: increase






4. What enzyme catalyzes the rate - limiting step in fatty acid oxidation?






5. What protective covering adheres to the spinal cord and CNS tissue?






6. More Ag is needed to produce a ____________ than a first immune response.






7. Which trophoblast layer of the placenta remains until the end of pregnancy?






8. What large - diameter vessel has the smallest cross - sectional area in systemic circulation?






9. What is the term to describe the increase in organ size due to the increase in cell size and function?






10. What is the amount in liters and percent body weight for the following compartments? - Interstitial fluid






11. What are the three characteristics of ADHD?






12. Where is the action potential generated on a neuron?






13. What is the term to describe a man who has x The ability to have an erection sometimes and other times not?






14. Name the most common cause - Chronic pancreatitis






15. In What type of circuit is the total resistance always less than that of the individual resistors?






16. What platelet disorder is characteristically seen in children following a bout of gastroenteritis with bloody diarrhea?






17. Name the associated chromosome - Albinism






18. What is the second leading cause of death in the United States?






19. What is the name of the T cell - rich area of the lymph node?






20. What enzyme of pyrimidine synthesis is inhibited by the following? - Methotrexate






21. What staphylococcal species is positive for Beta - hemolysis and coagulase?






22. What paraphilia is defined as x Having a recurrent desire to expose the genitals to strangers?






23. How many pairs of spinal nerves are associated with x Cervical vertebrae?






24. What area of the brain is responsible for emotion - feeding - mating - attention - and memory?






25. Neurofibrillary tangles






26. How are resistance and length related regarding flow?






27. What is the DOC for severe infections with Sporothrix - Mucor - Histoplasma - Cryptococcus - Candida - and Aspergillus?






28. In Parkinson's disease - What area of the basal ganglia has a decreased amount of dopamine?






29. What disease is produced by a deficiency in the enzyme tyrosinase?






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






31. What are the three glycogenic organs?






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






33. What form of nephritic syndrome is associated with celiac sprue and Henoch - Sch






34. What are the primary neurotransmitters at the following sites? - Chromaffin cells of the adrenal medulla






35. Insulin - induced hypoglycemia is the most reliable (by far not the safest) test For what hormone deficiency?






36. Prolactin levels can serve as a rough indicator of...






37. What test - by using specific Abs to different receptors - allows for rapid analysis of cell types in a blood sample?






38. What is the first epidermal layer without organelles and nuclei






39. Name the MCC of death - In SLE






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






41. What causes the lysis of RBCs by oxidizing agents in a G-6- PD deficiency?






42. What lipoprotein is formed if an IDL particle acquires cholesterol from a HDL particle?






43. Name the hormone






44. What is the rate - limiting step of the following? - Cholesterol synthesis






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






46. During What embryonic week do somites begin to form?






47. Which diuretic is used as an adrenal steroid antagonist?






48. What type of correlation is defined as x Two variables that go together in the same direction?






49. What type of personality test is the Rorschach inkblot test - objective or projective?






50. What is the name of the program that deals with codependency and enabling behaviors for family members of alcohol abusers?