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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. Reinke crystals






2. What two arteries join to form the superficial and deep palmar arches of the hand?






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






4. What myopathy due to autoantibodies to ACh receptors can present with thymic abnormalities - red cell aplasia - and muscle weakness?






5. Where is the last conducting zone of the lungs?






6. Name the type of graft described by these transplants: x From one species to another






7. What paraphilia is defined as x Deriving sexual pleasure from being abused or in pain?






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






9. What is the most common one? - Solid tumor in children






10. What is the most common one? - Congenital heart defect in adults






11. Name the components of the femoral canal - working laterally to medially.






12. What phase of Food and Drug Administration approval tests x The protocol and dose levels in a small group of patient volunteers?






13. What is the name of the major chemotactic agent released from x Bacteria?






14. What enzyme is deficient in the following glycogen storage disease? - Pompe's disease






15. What three substances stimulate glycogenolysis?






16. Name the cancer associated with the following chemical agents. (Some may have more than one answer.) x Nitrosamines






17. Are the following major or minor Jones criteria of rheumatic fever? - Erythema marginatum






18. RBCs in the urine






19. Name these narcissistic defense mechanisms: x Not allowing reality to penetrate because afraid of becoming aware of painful aspect of reality.






20. What form of angina is characterized by x Coronary artery vasospasm - symptom occurrence at rest - ST segment elevation (during episode) - and no signs on ECG?






21. What are the three end products of amylase digestion?






22. Serious psychiatric illness is more common _______ than childbirth.






23. Name the ocular lesion; be specific - A right lateral compression of the optic chiasm (as in aneurysms in the internal carotid artery)






24. What antitubercular agent causes loss of red - green visual discrimination?






25. What phase of the cell cycle are the following antineoplastic agents specific for? - Cytarabine






26. What happens to capillary oncotic pressure with dehydration?






27. What enzyme is deficient in patients with CGD?






28. What are the three sites where CSF can leave the ventricles and enter the subarachnoid space? (Name the lateral and the medial foramina.)






29. What growth factors are chondrogenic - working on the epiphyseal end plates of bone?






30. Pseudorosettes






31. What hormone controls relaxation of the lower esophageal sphincter during swallowing?






32. What two cell lines of the immune system do not belong to the innate branch?






33. Where is the greatest venous PO2 in resting tissue?






34. The first sensory neuron is in the dorsal root ganglia. It carries ascending sensory information in the dorsal root of a spinal nerve - eventually synapsing with second sensory neuron. In the brainstem (DCML) and the spinal cord (spinothalamic) the s






35. What is the most likely organism causing cellulitis in a patient who was cut by an oyster shell?






36. Name the most common type or cause - Nephritic syndrome in adults






37. What component of an ECG is associated with the following? - Ventricular depolarization






38. What is the stimulus for the classical pathway activation?






39. Name the Plasmodium species based on the following information: Persistent hypnozoite liver stage with relapses; blood smear shows amoeboid trophozoites; 48- hour fever spike pattern; the most prevalent form worldwide






40. What enzyme is essential for the conversion of CO2 to HCO3-?






41. 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






42. What endocrine abnormality is characterized by the following changes in PTH - Ca2+ - and inorganic phosphate (Pi)? - PTH decreased - Ca2+ increased - Pi increased






43. What is the term for the strength of the association between Ag and an Ab?






44. What is the term for a deficiency or absence of sexual fantasies or desires?






45. What organ functions to keep blood glucose levels normal through both well - fed and fasting states and produces ketones in response to increased fatty acid oxidation?






46. What picornavirus is associated with hand - foot - and - mouth disease?






47. What is the role of the negative charge on the filtering membrane of the glomerular capillaries?






48. What is the most common one? - Tumor arising within the bone






49. Name the product or products of arachidonic acid: x Vasodilation - bronchospasm - and increased vascular permeability






50. Where does most circulating plasma epinephrine originate?






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