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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. What is the site of action of the following? - Osmotic diuretics






2. What B- cell neoplasm is seen in males with massive splenomegaly - produces dry tap on bone marrow aspirations - and stains positive for tartrate - resistant acid phosphatase (TRAP)?






3. What vitamin is needed for the production of heme?






4. When does the primitive gut herniate out of the embryo? When does it go back into the embryo?






5. What is the term for making up stories regarding past experiences because of an inability to retrieve them?

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6. What is the term for new made - up words?

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






8. What is the term for hyphae with constrictions at each septum that are commonly seen in Candida albicans?






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






10. How many days prior to ovulation does estradiol peak in the menstrual cycle?






11. Cannot be diagnosed until puberty.






12. What breast malignancy has tumor cells with a halo surrounding the nucleus and is an ulceration of the nipple and areola with crusting - fissuring - and oozing?






13. Results in vitamin B12 deficiencies.






14. What part of the heart forms x Base?






15. What type of cell can never leave the lymph node?






16. Name the compartment of the mediastinum associated with the following thoracic structures: Descending aorta






17. Which medication used in the treatment of bipolar disorder decreases the release of T 4 from the thyroid gland?






18. Name the four ventral mesentery derivatives.






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






20. Name the compartment of the mediastinum associated with the following thoracic structures: Azygos vein






21. Name the cancer associated with the following oncogenes. (Some may have more than one answer) x c - myc






22. Name these anxiety defense mechanisms: x Separating oneself from the experience. The facts are accepted but the form is changed for protection.






23. Name the most common cause - Chronic pancreatitis






24. Which penicillin can cause interstitial nephritis?






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






26. What is the most common one? - Esophageal carcinoma






27. Can be secreted.






28. What two pituitary hormones are produced by acidophils?






29. Fact without feeling (la belle indiff






30. Readily diffuses across the blood - brain barrier.






31. What vessel does the right gonadal vein drain into?






32. What ascending sensory system carries joint position - vibratory and pressure sensation - and discriminative touch from the trunk and limbs?






33. What is the MCC of the following meningitides? - In adults






34. What is the most common one? - Bladder tumor






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






36. What AA is broken down into N2O - causing an increase in cyclic guanosine monophosphate (cGMP) of smooth muscle - hence vasodilation?






37. What is the most superficial layer of the epidermis?






38. Which muscarinic receptor uses a decrease in adenyl cyclase as its second messenger?






39. What fungus causes endocarditis in IV drug users?






40. How are lipid solubility and potency related for inhaled anesthetics? How do they affect onset and recovery?






41. Name the cancer associated with the following tumor markers. (Some may have more than one answer.) x alpha - Fetoprotein






42. Name the product or products of arachidonic acid: x Vasoconstriction and platelet aggregation produced by platelets






43. What protein prevents ssDNA from reannealing during DNA replication?






44. What diseases are associated with HLA- DR4






45. What factors are needed for translocation in eukaryotes?






46. Regarding the Lac operon - for What do the following genes code? - A gene






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






48. What are the four posttranslational modifications done by the Golgi apparatus?






49. How many pairs of spinal nerves are associated with x Thoracic vertebrae?






50. The surge of what hormone induces ovulation?