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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. Name the hypochromic microcytic anemia based on the following laboratory values - Decreased iron - percent saturation - and ferritin; increased TIBC






2. What antifungal agent is used to treat dermatophyte infections by inhibiting squalene epoxidase?






3. Where in the body is heme converted to bilirubin?






4. Name the most common type or cause - Liver transplantation in adults






5. What five things are checked in the APGAR test?






6. Name the macrophages by location: x Kidney






7. What are the three C's of a TCAD overdose?






8. Are the following responses associated with histamines H1 or H2 receptor activation? - Bronchial smooth muscle activity






9. 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






10. What are the primary neurotransmitters at the following sites? - Brainstem cells






11. Excess bone demineralization and remodeling can be detected by checking urine levels of what substance?






12. Name the most common type or cause - Infection in a patient on a ventilator






13. What hormone - produced by Sertoli cells - if absent would result in the formation of internal female structures?






14. What axis I disorder is characterized by pronoun reversal - preference for inanimate objects - obliviousness to the external environment - lack of separation anxiety - and abnormalities in language development?






15. Name the compartment of the mediastinum associated with the following thoracic structures: Descending aorta






16. What happens to the intrapleural pressure when the diaphragm relaxes?






17. What is the term for the rate measured for a subgroup of a population?






18. As what compound do the carbons for fatty acid synthesis leave the mitochondria?






19. Have analgesic - antipyretic - anti - inflammatory - and antiplatelet activities.






20. What is the name for the following RBC indices? - Average volume of a RBC






21. What is the term for an inhibited female orgasm?






22. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x hst -1 - int -2 - erb -2 - and erb -3






23. What is the only anesthetic that causes cardiovascular stimulation?






24. What is the most common one? - Site of Crohn disease






25. What two vitamins are inactivated when they come in contact with acetaldehyde?






26. What glial cell is derived from mesoderm and acts as a scavenger - cleaning up cellular debris after injury?






27. On the right lung the ___________ divides the middle from the inferior lobe and the horizontal fissure further divides the middle from the upper lobe. On the left the oblique divides the superior from the inferior lobe.






28. What protein causes fibrinolysis?






29. How is the eye affected by use of opioids?






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






31. What Ag is needed to diagnose an infectious patient with hepatitis B?






32. Name the compartment of the lower extremity and the nerve based on its movements - Extend the hip and flex the knee






33. How are resistance and length related regarding flow?






34. What enzyme catalyzes the rate - limiting step in gluconeogenesis?






35. What are the five branches of the median cord of the brachial plexus?






36. Name the structure that enters or exits the following foramina: x Foramen spinosum






37. With an increase in arterial systolic pressure - what happens to x Heart rate?






38. What is the drug of choice for penicillin - resistant gonococcal infections?






39. Avidin decreases the absorption of what vitamin?






40. What cardiac reflex is characterized by stretch receptors in the right atrium - afferent and efferent limbs via the vagus nerve - and increased stretch leading to an increase in heart rate via inhibition of parasympathetic stimulation?






41. Name the compartment of the mediastinum associated with the following thoracic structures: Heart and pericardium






42. What type of lysosome is formed when lysosome fuses with a substrate for breakdown?






43. What enzyme of the TCA cycle catalyzes the production of the following: x NADH (hint: 3 enzymes)






44. Name these mature defense mechanisms: x Helping others without expecting any return






45. What type of GN occurs most commonly in children after a pharyngeal or skin infection; is immune complex- mediated; and is seen as lumpy- bumpy subepithelial deposits?






46. What IL do T cells secrete to induce T- and B- cell division?






47. What AD renal disorder is associated with mutations of the PKD 1 gene on chromosome 16 and berry aneurysms in the circle of Willis and presents in the fifth decade with abdominal masses - flank pain - hematuria - HTN - and renal insufficiency?






48. What histone binds two nucleosomes together?






49. Fact without feeling (la belle indiff






50. What is the lymphatic drainage of the pelvic organs?