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






2. What embryonic structure forms the adult male structure? - Gubernaculum testes






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






4. What type of crystals are associated with gout?






5. What form of endocarditis do patients with SLE commonly encounter?






6. What renal calculus is associated with urea - splitting bacteria?






7. What type of DNA library is made from the mRNA from a tissue expressing a particular gene?






8. What two vessels come together to form the external jugular vein?






9. What is the major stimulus for cell division in chondroblasts?






10. What determines the plasma level at steady state?






11. What do UMNs innervate?






12. Based on the following information - is the renal transplantation rejection acute - chronic - or hyperacute? - Weeks to months after transplantation; abrupt onset of oliguria and azotemia; seen as neutrophilic vasculitis and interstitial lymphocytes






13. A 70-year - old man complains of urinary urgency - nocturia - hesitancy - postvoid dribbling - urinary retention - and a PSA result of 6.5 ng/mL. What is your diagnosis?






14. What vitamin is necessary for epithelial health?






15. Multiple pregnancies - early age of intercourse - multiple sexual partners - OCP use - smoking - HIV - and STDs.






16. What embryonic structure forms the adult male structure? - Epididymis - ductus deferens - seminal vesicle - and ejaculatory duct






17. Can a patient refuse life - saving treatment for religious reasons?

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18. Name the lung measurement based on the following descriptions: x Amount of air in the lungs after maximal expiration






19. On the venous pressure curve - What do the following waves represent? - C wave?






20. Name the cancer associated with the following chemical agents. (Some may have more than one answer.) x Polycyclic aromatic hydrocarbons






21. When do hCG concentrations peak in pregnancy?






22. Name the cluster C personality disorder: x Orderly - inflexible - perfectionist; makes rules - lists - order; doesn't like change - has a poor sense of humor - and needs to keep a routine






23. What are the three Beta - lactamase inhibitors?






24. What is the drug of choice for treating Tourette syndrome?






25. Why is the clearance of creatinine always slightly greater than the clearance of inulin and GFR?






26. Which calcium channel blocker is used to treat subarachnoid hemorrhages by preventing posthemorrhagic vasospasms?






27. Name the compartment of the mediastinum associated with the following thoracic structures: Vagus nerve






28. How can a deficiency in adenosine deaminase be a bone marrow suppressor?






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






30. What is the formula to calculate IQ?






31. What vitamin is a component of the coenzyme thiamine pyrophosphate (TPP)?






32. What is the size of a positive PPD test for the following? (Reactive) x Posttransplantation patient taking immunosuppressive agents






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






34. What test uses p24 protein when diagnosing HIV?






35. What leukemia affects a 4-year - old child with 3 months of fever - fatigue - generalized lymphadenopathy - CNS involvement - hepatosplenomegaly - bleeding - and platelet count below 100 - 000?






36. What area of the hypothalamus is responsible for recognizing a decrease in body temperature and mediates the response to conserve heat?

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37. What enzyme is inhibited by sulfonamides?






38. Name the hormone






39. Hereditary angioneurotic edema (AD) produces local edema in organs (e.g. - GI - skin - respiratory tract). What enzyme deficiency causes increased capillary permeability due to a release of vasoactive peptides?






40. What is the term for a delay in the onset of normal IgG synthesis seen in the fifth to sixth month of life?






41. What type of scheduled reinforcement states that after a desired response - the reinforcement is given x After a set number of responses?






42. What is the term for involuntary constriction of the outer third of the vagina to prevent penile penetration?






43. What enzyme is needed to activate the following reactions? - Procarboxypeptidase to carboxypeptidase






44. What protein allows Mycoplasma to attach to the respiratory epithelium?






45. What phase of the female cycle occurs during days 1 to 15?






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






47. In which syndrome does a person present with intentionally produced physical ailments with the intent to assume the sick role?






48. What are the three causes of normochromic normocytic anemia with a normal MCV and a low reticulocyte count?






49. Name the type of regeneration (i.e. - labile - stable - or permanent) based on the following examples - Liver






50. In the alveoli - what cell type is x for gas exchange?