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 happens to V/Q ratio if a thrombus is lodged in the pulmonary artery?






2. What condition is characterized by a 46XY karyotype - testes present - and ambiguous or female external genitalia?






3. How many kilocalories per gram are produced from the degradation of fat? CHO? Protein?






4. What term describes the inability to recall personal information - commonly associated with trauma?






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






6. What nematode is known as whipworms? What is the treatment?






7. What three substances stimulate glycogenolysis?






8. What is the term for hypercalcemia resulting in precipitation of calcium phosphate in normal tissue?






9. Name the hormone






10. Paranoid and catatonic schizophrenia are good...






11. What pathology is associated with podagra - tophi in the ear - and PMNs with monosodium urate crystals?






12. What happens to the following during skeletal muscle contraction? - A band






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






14. What component of the ANS is responsible for dilation of the blood vessels in the erectile tissue of the penis - resulting in an erection?






15. What remains patent in a hydrocele of the testis - allowing peritoneal fluid to form into a cyst?






16. What is the epithelial lining of the prostatic portion of the urethra?






17. What disorder is characterized by autoantibodies to IF?






18. What are the nonoxidative enzymes of the HMP shunt? Are the reactions they catalyze reversible or irreversible?






19. What is the most common condition leading to an intracerebral bleed?






20. Which trophoblast layer of the placenta remains until the end of pregnancy?






21. What is the most common primary malignant tumor in bone?






22. What organism is associated with the following types of diarrhea? Day care - associated diarrhea in infants






23. What is the most common one? - Malignant tumor of the esophagus






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






25. What happens to muscle tone and stretch reflexes when there is a LMN lesion?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


26. All of the hormones in the hypothalamus and anterior pituitary gland are...






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






28. What HIV structural gene produces GP120 and GP41?






29. What disease is produced by a deficiency in the enzyme tyrosinase?






30. What is the term to describe how easily a vessel stretches?






31. What vascular pathology is associated with HTN in the upper extremities - hypotension in the lower extremities - and a radial - femoral delay?






32. A patient can ______ a feeding tube.






33. Projectile nonbilious vomiting and a small knot at the right costal margin (olive sign) are hallmarks of What embryonic disorder?






34. Name the most common type - Mental retardation






35. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x CDK4






36. What branch off the vertebral artery supplies x The cerebellum and the dorsolateral part of the medulla?






37. What embryonic structure forms the following adult structures? - Nephrons - kidney






38. What syndrome is due to a deficiency of surfactant?






39. In high altitudes - What is the main drive for ventilation?






40. Name the most common type or cause - Subacute bacterial endocarditis






41. Depolarization of the postsynaptic membrane...






42. What results when the maxillary prominence fails to fuse with the medial nasal prominence?






43. Has proteolytic metabolic effects.






44. Which hepatitis strain is a defective virus that can replicate only inside HBV- infected cells?






45. What cell surface marker do all T cells have?






46. Name the antimicrobial agent whose major side effect is listed - Hemolytic anemia






47. Name the four right - to - left congenital cardiac shunts.






48. Which of the following characteristics accurately describe fungi - bacteria - viruses - or parasites? - Acellular; some are enveloped; replicate within the host cell; no cell walls






49. What is the name of the monoclonal antibody used in the treatment of Crohn disease and rheumatoid arthritis?






50. What type of hypersensitivity is a T cell - mediated response to Ags that are not activated by Ab or complement?