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. A patient goes to the ER with abdominal cramps - vomiting - diarrhea - and sweating less than 24 hours after eating potato salad at a picnic; What is the most likely responsible organism?






2. What drug of choice for ascaris causes neuromuscular blockade of the worm?






3. What test uses p24 protein when diagnosing HIV?






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

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


5. Does physiologic splitting of the first heart sound occur during inspiration or expiration? Why?






6. What cell type do cromolyn and nedocromil affect for prophylactic management of asthma via blockade?






7. Why is the cell's resting membrane potential negative?






8. What is the MCC of the following meningitides? - In military recruits






9. What is the triad of Reiter syndrome?

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


10. What form of bias occurs when the experimenter's expectation inadvertently is expressed to the subjects - producing the desired effects? How can it be eliminated?






11. In what cycle does glucose go to the muscle - where it is converted to pyruvate and then into alanine before being taken back to the liver?






12. At what vertebral level does the common carotid artery bifurcate?






13. What operant conditioning therapy or modification is described as x Reinforcing successive attempts that lead to the desired goal (gradual improvement)?






14. Match the chromosome and haploid number with the stage of sperm development - spermatid - spermatocyte (primary or secondary) - spermatogonia (type A or B): x 46/2n (divide meiotically)






15. Which hepatitis B serology markers






16. How many segments in a neutrophilic nucleus are necessary for it to be called hypersegmented?






17. Name the MCC of death - In neonates






18. What are the two MCC of acute epididymitis in males? - More than 35 years old






19. What type of symptoms in schizophrenia are associated with x Muscarinic receptors (ACh)?






20. How is sleep affected in a person with alcohol intoxication?






21. What two viruses are associated with Reye's syndrome?






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






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






24. Name the ocular lesion; be specific - Left Meyer's loop lesion of the optic radiations.






25. What chromosome 4 - AD disorder is a degeneration of GABA neurons in the striatum of the indirect pathway of the basal ganglia?

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


26. What phase of the cell cycle are the following antineoplastic agents specific for? - Bleomycin






27. If you double the infusion rate of a drug - how long will it take to reach steady state?






28. What is the DOC for treating Entamoeba histolytica - Giardia - Trichomonas - Bacillus fragilis - and Clostridium difficile infections?






29. What are the pharmacologic effects seen sexually with x Neuroleptics?






30. Does the zygote divide mitotically or meiotically?






31. What is the term for chronic necrotizing pulmonary infections resulting in permanent airway dilation and associated with Kartagener syndrome?






32. What hormone is characterized by the following renal effects? - Calcium reabsorption - phosphate reabsorption






33. What is used as an index of cortisol secretion?






34. Which form of melanoma carries the worst prognosis?






35. What is the name of the benzodiazepine antagonist used in the treatment of an overdose?






36. Name the macrophage based on its location: x Liver macrophages






37. What hormone causes milk letdown?






38. What is the most common one? - Benign GI tumor






39. What serotonin reuptake inhibitor's major sexual side effect is priapism?






40. Which benzodiazepine is most commonly used IV in conscious sedation protocols?






41. Inhibition of peripheral aromatic amino acid decarboxylase and increased CNS availability of L- dopa are results of what drug used in the treatment of Parkinson's disease?






42. What pathophysiologic disorder is characterized by the following changes in cortisol and ACTH? - Cortisol decreased - ACTH decreased






43. Movement disorders are associated with what dopamine pathway (What part of the brain)?






44. What is the term for headaches - inability to concentrate - sleep disturbances; avoidance of associated stimuli; reliving events as dreams or flashbacks following a psychologically stressful event beyond the normal range of expectation?






45. Where are the LMN cell bodies of the corticospinal tract?






46. What are the three causes of transudate?






47. What is the only dsRNA virus?






48. What is the only encapsulated fungal pathogen?






49. What scale assesses a rank order classification but does not tell the difference between the two groups?






50. From What aortic arch are the following structures derived?