Pharmacology MCQs- 230

A 24-year-old woman visits her physician for treatment of anxiety. She requests to change her current medication because it is sedative. Which one of these drugs has the minimum sedative effect? A-Buspirone B-Lorazepam C-Midazolam D-Promethazine E-Trazodone Answer Buspirone is non-benzodiazepine anti-anxiety medication and has the minimum sedation effect compared to benzodiazepines such as lorazepam and … Read more

Repeated USMLE Questions Step 2 CK- 443

A 12-year-old boy with a history of cystic fibrosis develops dyspnea, cough and fever. His temperature is 103.1 F, his pulse is 120/min and his oxygen saturation is 85%. Lung examination reveals bilateral rhonchi. What is the appropriate antibiotic treatment? A-Ampicillin B-Ampicillin and gentamicin C-Ceftazidime D-Ceftazidime and gentamicin E-Vancomycin Answer This is a case of … Read more

Repeated USMLE Questions Step 1- 308

A 26-year-old man presents to the clinic with a complaint of recurrent episodes of bloating, flatulence and diarrhea following eating dairy products. He mentions that he does not experience these symptoms if he does not drink milk or if he is fasting. What is the most likely cause of diarrhea in this patient? A-Inflammatory B-Osmotic … Read more

Pharmacology MCQs- 229

Studies are done on normal volunteers for phase 1 clinical trials of a new drug. The volume of distribution and clearance has been measured. The researchers now are calculating the half-life of the drug. Assuming that the volume of distribution is 60 L and the clearance is 3 L/hour, what is the approximate half-life of … Read more

Repeated USMLE Questions Step 1- 307

A 32-year-old woman with a history of generalized anxiety disorder develops numbness of her face particularly around her mouth. Physical examination and x-ray show no abnormalities other than markedly increased respiratory rate. Laboratory investigations are as follows: PO2: 100 mmHg PCO2: 30 mmHg Bicarbonate: 18 mEq/L pH of blood: 7.51 Which of these findings shows … Read more