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






2. When do hCG concentrations peak in pregnancy?






3. What fissure of the cerebral cortex separates the frontal and temporal lobes rostrally and partially separates the parietal and temporal lobes?






4. Is an embryologic foregut derivative.






5. All aluminum - containing antacids can cause...






6. What are the five Ig isotypes?






7. What are the functions of the zonula occludens and the zonula adherens






8. Name the phase of the eukaryotic cell cycle: x Period of cellular growth (translation and transcription) before DNA synthesis






9. How does ventricular repolarization take place - base to apex or vice versa?






10. What cerebral vessel size is affected in patients with vascular dementia?






11. Are the quadrate and caudate lobes of the liver functionally part of the left or right lobe?






12. What neuropsychologic test has five basic scales testing for the presence and localization of brain dysfunction?






13. What carpal bone is most commonly fractured? Dislocated?






14. Which macrolide is given as 1200 mg/week for the prophylaxis of Mycobacterium avium intracellulare complex?






15. What structure of the knee is described thus? - C- shaped shock absorber; aids in attachment of the tibia to the femur via the medial collateral ligament






16. What is the neurotransmitter at the d - receptor?






17. What specifies how accurately the sample values and the true values of the population lie within a given range?






18. What Enterobacteriaceae are prone to produce osteomyelitis in sickle cell patients?






19. If a patient with a cerebellar lesion has nystagmus - which way is the fast component directed - toward or away from the lesion?






20. Below the ___________ - all the aponeurotic fibers run anterior to the rectus abdominis.






21. Name the compartment of the mediastinum associated with the following thoracic structures: Splanchnic nerves






22. What vascular injury may result from a supracondylar fracture of the femur?






23. Name the macrophage based on its location: x Bone macrophages






24. What naturally occurring substances mimic the effects of opioids?






25. What mineral is an important component of the enzyme xanthine oxidase?






26. What catecholamine - hypersecreting tumor - a secondary cause of HTN - results in headache - diaphoresis - anxiety - tachycardia - and palpitations?






27. Influenza - Vibrio cholera - hepatitis A - rabies - and adenovirus.






28. What hormone is required for 1 - 25- dihydroxy- vitamin D (1 - 25- diOH- D) to have bone resorbing effects?






29. How are resistance and length related regarding flow?






30. What renal disease in diabetic patients is seen as a halo of capillaries around the mesangial nodules?






31. Is a marker for increased bone formation.






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






33. What is the statistical term for the proportion of truly nondiseased persons in the screened population who are identified as nondiseased?






34. What is the valence of an Ig molecule equal to?






35. What is the most common lysosomal storage disorder?






36. How many carbons do androgens have?






37. What diseases are associated with the HLA- B27 allele

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38. What motile - gram - negative spiral bacillus with flagella is oxidase positive - urease positive - and associated with gastritis - peptic ulcer disease - and stomach cancer?






39. What are the four signs of acute inflammation?






40. What type of muscle contraction occurs when the muscle shortens and lifts the load placed on it?






41. What is the most common one? - Site for colonic diverticula






42. Movement disorders are associated with what dopamine pathway (What part of the brain)?






43. What is a plasma cell's life expectancy?






44. What area of the lymph node contains germinal centers?






45. A 20-year - old woman goes to the ER with ptosis - diplopia - weakness in her jaw muscles when chewing - and muscle weakness with repeated use. What is your diagnosis?






46. What level of mental retardation is characterized by x Can work in sheltered workshops and learn simple tasks but need supervision?






47. What muscles insert in or on the intertubercular groove of the humerus?

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48. Is suicidal ideation a component of normal grief?






49. What is the term for the number of Ag - binding sites on an Ig?






50. Name the thalamic nucleus based on its input and output - Input from globus pallidus and substantia nigra; output to primary motor cortex