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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. What antipsychotic movement disorder can occur at any time and is characterized by a subjective sense of discomfort that brings on restlessness - pacing - sitting down - and getting up?






2. What is the most common opportunistic infection of the CNS in HIV?






3. What equals the total tension on a muscle minus the preload?






4. What is the drug of choice in treating a patient with hyperuricemia due to underexcretion of uric acid?






5. What is the most common one? - Site of a cerebral infarct






6. What disease has IgG autoantibodies - occurs in women more than men - and includes exophthalmos - pretibial myxedema - nervousness - heart palpitations - and fatigue?






7. What antiviral agents inhibit neuraminidases of influenza A and B?






8. What subtype of IgG does not activate complement cascade?






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






10. Name the structure that enters or exits the following foramina: x Internal auditory meatus






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






12. People who believe that luck - chance - or the actions of others control their fate have an internal locus of control.






13. What type of error is made if you reject the null hypothesis when it is true?

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






15. To What does aldose reductase convert galactose?






16. What is the most common one? - Cardiac anomaly in children






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






18. Name the most common type or cause - Painless hematuria






19. Where do sperm go for maturation?






20. What area of the retina consists of only cones and has the greatest visual acuity?






21. What happens to the lung if the intrapleural pressure exceeds lung recoil?






22. What is the term for Candida infection of the oral mucosa?






23. What term describes the volume of plasma From which a substance is removed over time?






24. With an increase in arterial systolic pressure - what happens to x Vessel compliance?






25. Which bacteria are associated with the following pigment production? - Yellow pigmentation






26. What Brodmann area is associated with x Visual association cortex?






27. What are the four reasons for hypochromic microcytic anemia with a low MCV?






28. In regard to motor development during infancy - choose the motor response that happens first - Proximal or distal progression






29. What happens to capillary oncotic pressure with dehydration?






30. Name the most common type or cause - Neonatal bowel obstruction






31. Name the phase of the ventricular muscle action potential based on the following information: x Slow channels open - allowing calcium influx; voltage - gated potassium channels closed; potassium efflux through ungated channels; plateau stage






32. Induces the cytochrome P-450 enzymes.






33. What is the most common one? - Renal calculus type






34. What ring is a weblike narrowing of the gastroesophageal junction?






35. What are the two most common AAs found in histones?






36. Do the following structures pick up stain from hematoxylin or eosin? - Collagen






37. Streaky ovaries






38. What type of Plasmodium affects x RBCs of all ages?






39. What hematologic malignancy is treated with the monoclonal antibody rituximab?






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






41. Name the laryngeal muscle described by the following: x Pulls the arytenoids cartilages closer to the thyroid - relaxing the vocal ligaments and thereby decreasing the pitch






42. What tumor marker is associated with seminomas?






43. How are resistance and viscosity related regarding flow?






44. A chronic alcohol abuser goes to the ER with weakness - a sore - beefy red tongue - loss of vibration and position sense - arm and leg dystaxia - elevated levels of methylmalonic acid in the urine - and anemia with an MCV above 105 fL. What is your d






45. What autoimmune liver disease is characterized by affecting a middle - aged woman with jaundice - pruritus - fatigue - xanthomas - increased direct bilirubin levels - and antimitochondrial Abs?






46. What is the main type of cell involved in cellular immunity?






47. Name the macrophages by location: x Lungs






48. How many pairs of spinal nerves are associated with x Lumbar vertebrae?






49. What hormone disorder is characterized by the following abnormalities in sex steroids? - LH? - and FSH?? - Sex steroids - LH - FSH ?






50. The DSM- IV- TR is scored on the basis of five axes of diagnosis. In What axis would you place x Psychosocial and environmental problems (stressors)?