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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. Which potassium - sparing drug is an aldosterone receptor antagonist ?






2. What enzyme catalyzes the rate - limiting step in pyrimidine synthesis?






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






4. How many attacks are needed over how much time before panic disorder is diagnosed?






5. At high doses aspirin has ________ properties.






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






7. Which two negative sense RNA viruses have neuraminidase enzymes?






8. What type of binding occurs with one Fab or one idiotype of IgG?






9. What CNs arise from x The pons?






10. Which of the following characteristics accurately describe fungi - bacteria - viruses - or parasites? - Eukaryotic cell; 3 to 10 microns; 80S ribosomes; chitinous cell wall; ergosterol in cell membrane; replicate via cytokinesis with mitosis and meio






11. Name the associated chromosomal translocation - CML






12. In what layer of the epidermis is melanin transferred from melanocytes to keratinocytes?






13. Is associated with CML.






14. What type of bias is it when the information is distorted because of the way it is gathered?






15. What cells of the kidney are extravascular chemoreceptors for decreased Na+ - Cl - - and NaCl?






16. What form of Plasmodium species affects the liver?






17. What phase of the cell cycle are the following antineoplastic agents specific for? - Nitrosoureas






18. What are the two essential fatty acids?






19. When the results of a test are compared to findings for a normative group - what form of reference does the objective test use?






20. What ganglion receives preganglionic sympathetic fibers from T1 to L1-2 and innervates smooth muscle - cardiac muscle - glands - head - thoracic viscera - and blood vessels of the body wall and limbs?






21. What is the name of the exotoxin Shigella dysenteriae produces - which interferes with the 60S ribosomal subunit and results in eukaryotic protein synthesis inhibition?






22. What two classes of drugs can cause schizoid behavior?






23. What benign solitary papillary growth within the lactiferous ducts of the breast commonly produces bloody nipple discharge?






24. What do the risk factors late menopause - early menarche - obesity - nulliparity - excessive estrogen - genetic factor p53 - and brc - abl characterize?






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






26. What nerve is compromised in carpal tunnel syndrome?






27. Is a cause of asthma.






28. The fibers of nucleus gracilis and nucleus cuneatus cross at the medullary decussation and ascend contralateral to What thalamic relay nucleus?






29. What are the four effects of suckling on the mother?






30. Name the compartment of the lower extremity and the nerve based on its movements - Adduct the thigh and flex the hip






31. What bacteriostatic agent's side effect profile includes grey baby syndrome and aplastic anemia?






32. What type of fiber or fibers are carried in (answer motor - sensory - or both) x Dorsal rami?






33. What substance found in eosinophils is toxic to parasitic worms?






34. What is secretin's pancreatic action?






35. Patients with sickle cell anemia are at increased risk for infection From what type of organisms?






36. What cancer is particularly likely to affect English chimney sweeps?






37. At the base of the lung - What is the baseline intrapleural pressure - and what force does it exert on the alveoli?






38. What embryonic structure forms the following adult structures? - Median umbilical ligament






39. What breast pathology involves malignant cells with halos invading the epidermis of the skin?






40. What pineal hormone's release is inhibited by daylight and increased dramatically during sleep?






41. What is the term for cytoplasmic remnants of RNA in RBCs - seen in lead poisoning?






42. What is the term for the external urethra opening onto the dorsal surface of the penis?






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






44. What bacterium is diagnosed using the Dieterle silver stain?






45. What are the pharmacologic effects seen sexually with x Dopamine agonists?






46. What phase of the cell cycle are the following antineoplastic agents specific for? - 6- Thioguanine






47. What syndrome is associated with the following brainstem lesions? - Occlusion of the PICA - resulting in ipsilateral limb ataxia - ipsilateral facial pain and temperature loss - contralateral pain and body temperature loss - ipsilateral Horner's synd

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48. In what compartment of the thigh is the profundus femoris artery found?

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49. Where on the codon and anticodon does the wobble hypothesis take place?

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50. What thyroid carcinoma secretes calcitonin and arises from the parafollicular C cells?







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