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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 only Ig that crosses the placenta?






2. Which form of emphysema is associated with an alpha1- antitrypsin deficiency?






3. What disease is seen in children younger than 5 years of age and is characterized by X- linked recessive cardiac myopathies - calf pseudohypertrophy - lordosis - protuberant belly - an increase then a decrease in CPK - and death commonly in the secon






4. Name the associated chromosome - Cystic fibrosis






5. Is there more circulating T3 or T4 in plasma?






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






7. How far below ideal body weight are patients with anorexia nervosa?






8. Do the following structures pick up stain from hematoxylin or eosin? - Nucleoli






9. What is it called when levels of sex steroids increase - LH increases - and FSH increases?






10. Name the aphasia based on these characteristics: x Both Broca's and Wernicke's areas damaged by lesion in the presylvian speech area; trouble repeating statements; poor comprehension with telegraphic speech






11. Being college educated increases a man's risk of having...






12. Which muscles of the eye are under parasympathetic control?






13. What are the two side effects of opioids to which the user will not develop tolerance?






14. Which three factors cause the release of epinephrine from the adrenal medulla?






15. What area of the brain is responsible for emotion - feeding - mating - attention - and memory?






16. What form of arthritis is associated with calcium pyrophosphate crystals?






17. What is the most common organ involved in amyloidosis?






18. Patients with ___________ have no Barr bodies.






19. Where are the enzymes for the ETC and oxidative phosphorylation found?






20. In a negatively skewed curve is the mean greater than the mode?






21. Is not found in smooth muscle - liver - and the kidneys.






22. What is the most common one? - Benign tumor of the ovary






23. What vascular injury may result from a supracondylar fracture of the femur?






24. What type of Hgb is increased in patients with sickle cell anemia who take hydroxyurea?






25. What small gram - negative aerobic rod requires Regan - Lowe or Bordet - Gengou medium for growth?






26. What specifies how accurately the sample values and the true values of the population lie within a given range?






27. What three complement fragments are also anaphylatoxins?






28. If a peripheral blood smear shows schistocytes - reticulocytes - and thrombocytopenia - is it more commonly seen in patients with ITP or TTP?






29. Anatomical and alveolar dead spaces together constitute what space?






30. What complement factor or factors are associated with x Membrane attack complex (MAC)?






31. Name the area of the cerebral cortex affected by the description of the effects - symptoms - and results of the lesion - Withdrawn - fearful - explosive moods - violent outbursts - and loss of inhibitions






32. What segments of the lumbosacral plexus form the following nerves? - Obturator nerve






33. What hormones - secreted in proportion to the size of the placenta - are an index of fetal well - being?






34. What enzyme is deficient in chronic granulomatous disease of childhood?






35. What is the term for days 15 to 28 in the female cycle?






36. What classical conditioning therapy or modification is described as x Triage of a hierarchy of fears (from least to most) - then teaching muscle relaxation techniques in the presence of those fears until the subject is not afraid anymore?






37. Which acid - fast rod is an obligate intracellular parasite?






38. Bloody tap on lumbar puncture






39. Are white rami preganglionic or postganglionic fibers?






40. Place in order from fastest to slowest the rate of gastric emptying for CHO - fat - liquids - and proteins.






41. A single mRNA strand translated by a ribosome is termed what?

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42. Name the most common one - Chromosomal disorder involving sex chromosomes






43. Name the reaction that appears in babies who are temporarily deprived of their usual caretaker. (This reaction usually begins around 6 months of age - peaks around 8 months - and decreases at 12 months.)






44. What is the name for inability to stop a movement at the intended target?






45. What lymphoma is characterized by CD19 - CD20 - CD5; CD23- negative; and chromosome 11;14 translocations?






46. What syndrome is associated with the following brainstem lesions? - Vertebral artery or anterior spinal artery occlusion - resulting in contralateral corticospinal tract and medial lemniscus tract deficits and an ipsilateral CN XII lesion






47. What is the name of the postganglionic parasympathetic ganglion that innervates x The lacrimal gland and oral and nasal mucosa?






48. What disorder is due to a 5-- reductase deficiency - resulting in testicular tissue and stunted male external genitalia?






49. What three bases are pyrimidines?






50. What enzyme catalyzes the rate - limiting step of the urea cycle?