Free Questions and Answers for All Medical Students all over the World
Q- A 32-year-old woman presents with a complaint of severe pain during menstruation. She is prescribed indomethacin. Which of the following is the mechanism of action of this drug to reduce her pain? A- Interferes with the production of leukotrienes B- Limits the production of histamine C- Stimulates the production of prostaglandin E2 D- Inhibits … Read more
A 23-year-old man with a long history of duodenal ulcer has been treated with cimetidine (Tagamet) for 6 months. What is the mechanism of action of this drug? A-Adds a protective membrane to gastric mucosa B-Blocks H2 receptors C-Stimulates H2 receptors D-Inhibits H+,K+-ATPase Answer Cimetidine blocks H2 receptor so, it blocks the secretion of hydrochloric … Read more
A 9-month- old girl is brought by her grandmother to the clinic for routine examination. She told you that the girl is totally fine but she noticed yellow discoloration of her teeth. The physician asks if her mother took any medications during her pregnancy. She remembers that she was taking an antibiotic for bronchitis. Which … Read more
A 77-year-old man presents to the emergency room with a complaint of retention of urine. Carbachol is administered to stimulate bladder emptying. Which of the following is a prominent side effect of carbachol? A-Tachycardia B-Excessive salivation C-Dry skin D-Dilation of the pupils E-Delirium Answer Carbachol is a cholinomimetic drug which activates acetylcholine receptors so, it … Read more
A 54 year-old man with a history of chronic obstructive pulmonary disease (COPD) presents by his son to the emergency room semi-unconscious with shortness of breath. He has nausea, diarrhea and restlessness for the last four hours. His arterial oxygen saturation is 88% with room air. His ECG shows normal sinus rhythm with non-specific changes … Read more
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