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. Which organisms have polycistronic mRNA?






2. What is the site of action of cholera toxin?






3. Is there a shift in p50 values with anemia? Polycythemia?






4. Which gram - positive bacteria infection of infancy is associated with ingestion of honey?






5. What type of fiber or fibers are carried in (answer motor - sensory - or both) x Dorsal root ganglion?






6. What form of hemophilia is X- linked recessive and due to a deficiency in factor VIII?






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






8. What pathophysiologic disorder is characterized by the following changes in cortisol and ACTH? - Cortisol decreased - ACTH increased

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9. Should you refer a patient to a form of folk medicine even if you don't believe in it?

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10. What is the term for pigmented iris hamartomas seen in patients with neurofibromatosis type 1?






11. What are the two ways to leave the prevalence pot?






12. What cell transports IgA - is secreted by plasma cells - and is in Peyer's patches to the gastrointestinal lumen?






13. What forms of fatty acids are absorbed from the small intestine mucosa by simple diffusion?






14. In a parallel circuit - what happens to resistance when a resistor is added in parallel






15. What are the three glycogenic organs?






16. What is the primary predisposing factor for vascular dementia?






17. What is the name of the postganglionic parasympathetic ganglion that innervates x The lacrimal gland and oral and nasal mucosa?






18. Which bacteria are associated with the following pigment production? - Black - gray pigmentation






19. Name these anxiety defense mechanisms: x Separating oneself from the experience. The facts are accepted but the form is changed for protection.






20. What is the name of the T cell - rich area of the spleen?






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






22. What is the titratable acid form of H+ in the urine?






23. Name the hypochromic microcytic anemia based on the following laboratory values - Increased iron - decreased TIBC - increased percent saturation - increased ferritin






24. What GI pathology can be caused by a patient taking clindamycin or lincomycin or by Clostridium difficile - ischemia - Staphylococcus - Shigella - or Candida infection?






25. What happens to flow and pressure in capillaries with arteriolar dilation? Arteriolar constriction?






26. What AD disorder is characterized by degeneration of GABA neurons in the caudate nucleus resulting in atrophy - chorea - dementia - and personality changes?






27. Name the antidote - Digoxin






28. What CN is associated with the x First pharyngeal arch?






29. Is masturbation considered an abnormal sexual practice?






30. What tumor constitutes 40% of testicular tumors in children?






31. What happens to O2 affinity with a decrease in p50?






32. Name the most common type or cause - Cushing syndrome






33. What is the function of the basal ganglia?






34. When the results of a test are compared to findings for a normative group - what form of reference does the objective test use?






35. What is the most common one? - Melanoma in dark - skinned persons






36. Name the type of necrosis - Due to lipase activity and has a chalky white appearance






37. What are the three surrogate criteria?

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38. What virus is associated with progressive multifocal leukoencephalopathy?






39. What is the effect of insulin on protein storage?






40. What complex is needed for propionyl CoA carboxylase?






41. Match the chromosome and haploid number with the stage of sperm development - spermatid - spermatocyte (primary or secondary) - spermatogonia (type A or B): x 46/2n (divide meiotically)






42. If the P value is less than or equal to .05 - What do you do to the null hypothesis?






43. What are the two MCC of acute epididymitis in males? - Less than 35 years old






44. Place in order from fastest to slowest the rate of gastric emptying for CHO - fat - liquids - and proteins.






45. What two Ags must be positive for a patient to have chronic active hepatitis?






46. What fungus is seen as colored cauliflower lesions?






47. Name the associated chromosome - Down syndrome






48. Do the PO2 peripheral chemoreceptors of the carotid body contribute to the normal drive for ventilation?






49. What is the most common one? - Germ cell tumor in men






50. Name these immature defense mechanisms: x Taking others' beliefs - thoughts - and external stimuli and making them part of the self. (Hint: if it's done consciously - it is called imitation.)