Free Questions and Answers for All Medical Students all over the World
A 21-year-old medical student with a history of asthma presents to the clinic for medication refill. He discussed with his physician the pros and cons of treatment with theophylline. One of the disadvantages of using theophylline is low toxic threshold. Which of these drugs is used to treat theophylline toxicity? A-Albuterol B-Atenolol C- Digoxin D-Epinephrine … Read more
A 23-year-old man who takes anti-mycobacterial therapy for pulmonary tuberculosis presents to the clinic because of recent visual disturbance and pain with movement of his left eye. On examination, there is tenderness to the pressure of the left eye and a blind spot at the center of vision. Fundus examination reveals pale optic disc. What … Read more
A 61-year-old man with a history of recurrent angina and hypertension presents to the clinic for routine examination. His vital signs are within normal limits and his cardiac examination is satisfactory. Reviewing his medication, his physician noticed that he had been prescribed labetalol for 2 years. He discussed with his patient replacing it with atenolol. … Read more
A 24-year-old man with a history of AIDS is currently managed by antiretroviral therapy (HAART) containing a protease-inhibitor, a nucleoside reverse transcriptase inhibitor and a non-nucleoside reverse transcriptase inhibitor. Which one of these drugs is a nucleoside reverse transcriptase inhibitor? A-Etravirine B-Efavirenz C-Indinavir D-Saquinavir E-Zidovudine Answer Zidovudine is the only drug on this list that … Read more
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