Pharmacology MCQs- 203

A 33-year-old woman presents to the clinic for her regular yearly physical examination. She has a long history of depression and takes fluoxetine regularly for two years. Which amino acid is the precursor of the neurotransmitter affected by this drug? A- Glycine B- Glutamate C- Methionine D- Phenylalanine E- Tryptophan Answer Fluoxetine is a selective … Read more

Pharmacology MCQs- 202

A 45 year-old man presents with progressive burning epigastric pain. He smokes and drinks alcohol socially. Physical examination, laboratory tests and imaging studies confirm the diagnosis of peptic ulcer. He is prescribed omeprazole. What is the effect of this medication that improves this condition? A-Anti-cholinergic effect B-Inhibition of H+/K+ ATPase pump C-Blocking of H2 receptor … Read more

Pharmacology MCQs- 201

A 29-year-old woman with a history of rheumatic heart disease and prosthetic aortic valve presents to her physician for consultation. She is referred by her dentist for prophylaxis before she undergoes an oral surgery next month. She has no history of bacterial endocarditis. She is allergic to penicillin. Which of the following is the prophylactic … Read more

Repeated USMLE Questions Step 1- 217

Q- A patient presents to the ER with multiple episodes of tonic clonic seizures for the past hour. The patient does not recover between these episodes. Which of the following is the treatment of choice in this condition? A- Diazepam B- Gabapentin C- Phenytoin D- Valproic acid Q- A 56-year-old man with a history of … Read more

Repeated USMLE Questions Step 2 CK-1

Q- Achalasia is a motility disorder of the esophagus characterized by impaired relaxation of the lower esophageal sphincter. Which of the following is the most likely etiology of this condition? A- Adenocarcinoma of the lower esophagus B- Degeneration of the inhibitory neurons of the myenteric plexus C- Obstruction caused by Schatzki rings D- Prolonged intubation … Read more

USMLE Q Bank Step 1-1

A 72-year-old man presents to the office for evaluation of new symptoms. He has a history of cancer and takes chemotherapeutic treatment. Now he complains of dyspnea and mild fatigue since last week. Examination reveals temperature of 98.3 F, pulse of 80/min, blood pressure of 140/86 and respiratory rate of 22/min. On chest auscultation, there … Read more