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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 antidote - Acetaminophen






2. What type of jaundice is seen in Dubin - Johnson syndrome?






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






4. In what stage of sleep is GH secreted?






5. What seven structures are found in more than one mediastinum?






6. You would not prescribe __________ for a patient with gout who is an overexcretor of uric acid.






7. What ocular ganglion is affected if the pupil on the affected side sluggishly responds to light with normal accommodation?






8. In prokaryotes - What is the term for a set of structural genes that code for a select group of proteins and the regulatory elements required for the expression of such gene?






9. What are the two functions of the thymus in T- cell differentiation?






10. Based on the following information - is the renal transplantation rejection acute - chronic - or hyperacute? - Months to years after transplantation; gradual onset of HTN - oliguria - and azotemia; seen as intimal fibrosis of the blood vessels and in






11. What three chemical agents are associated with angiosarcomas of the liver?






12. What is the primary target for the action of glucagon?






13. Name the lung measurement based on the following descriptions: x The amount of air that enters or leaves the lung system in a single breath






14. What three lung measurements must be calculated because they cannot be measured by simple spirometry?






15. Which hepatitis B serology markers






16. What is the term for flexion of the PIP and extension of the DIP joints seen in rheumatoid arthritis?






17. What is the term for the proportion of a drug that reaches systemic circulation?






18. What structure of a protein describes the interaction among subunits?






19. To What is the diffusion rate indirectly proportional?






20. The inferior mesenteric artery drains into it.






21. What slow - growing CNS tumor in 30- to 50-year - old patients with a long history of seizures has fried egg cellular appearance in a network of chicken wire?






22. If a virus has positive sense RNA - can it be used as mRNA or is a template needed?






23. What is the term for the sign revealed when a psoriatic scale is removed and pinpoint bleeding occurs?






24. Does REM deprivation interfere with performance on simple tasks?






25. What is the term for RBCs with smooth undulations on the surface of their membrane - commonly seen in uremia?






26. Where does the synthesis of ACh occur?






27. Name the most common type or cause - Pyogenic osteomyelitis






28. What tetracycline is associated with hepatotoxicity?






29. What factors are needed for elongation in eukaryotes?






30. What thyroid enzyme is needed for oxidation of I- to I'?






31. What is the DOC for the following protozoal infections? - Pneumocystis carinii pneumonia






32. In a ventricular pacemaker cell - what phase of the action potential is affected by ACh?






33. Name the GLUT transporter based on the following: x Found in most tissues - including brain and RBCs






34. Which two cephalosporins cross the blood - brain barrier?






35. Name the compartment of the mediastinum associated with the following thoracic structures: Ascending aorta






36. Results in vitamin B12 malabsorption.






37. What condition results in the following CSF results? - Opening pressure 250 mm H2O; WBCs 250 (90% lymphocytes); glucose 35; protein 100






38. What drug is given transdermally for chronic pain but can cause chest wall rigidity if given IV?






39. What is the name of a thin brown ring around the outer edge of the cornea - seen in Wilson's disease?






40. Name the most common type or cause - Neonatal septicemia and meningitis






41. Name the type of exudate - given the following examples - Diphtheria infection






42. At what point does the axillary artery become the brachial artery?






43. When do hCG concentrations peak in pregnancy?






44. What is the DOC for CMV retinitis?






45. Name the phase of the eukaryotic cell cycle: x Period of DNA replication (preparing for mitosis)






46. What AA is the major carrier of nitrogen byproducts from most tissues in the body?






47. Regarding the Lac operon - for What do the following genes code? - Z gene






48. Name the area of the cerebral cortex affected by the description of the effects - symptoms - and results of the lesion - Apathy - aggression - inability to learn new material - and memory problems






49. What childhood pathology involves anterior bowing of the tibia - epiphyseal enlargements - and costochondral widening - with the endochondral bones being affected?






50. In a negatively skewed curve is the mean greater than the mode?