Q- A study found that incidence of lung cancer in smokers is 230/100,000 and in smokers is 71/100,000. What is the relative risk for smokers? A-2.3 B- 3.2 C- 71 D- 230 Q- A patient with cystic fibrosis is treated by gene therapy. Which of the following types of cells should be targeted as host […]
Pharmacology MCQs- 278
Q- A liposomal preparation of which one of the following medications may reduce the incidence of renal toxicity? A- Acyclovir B- Amphotericin B C- Ketoconazole D- Vancomycin Q- Which of the following medications is the most effective immunosuppressant in cases of organ transplantation? A- Azathioprine B- Cyclophosphamide C- Cyclosporine D- Vinblastine Q- Which of the […]
Repeated USMLE Questions Step 1- 371
Q- A newborn infant presents with cleft palate and hypocalcemia. Genetic testing of the blood shows 22q 11.2 deletion. Which of the following is the most likely diagnosis? A- DiGeorge Syndrome B- Down syndrome C- Stickler syndrome D- Turner’s syndrome Q- A college student is brought to the ER for fever and agitation. Examination reveals […]
Pharmacology MCQs- 277
Q- Lidocaine is an effective antiarrhythmic because of which of the following mechanisms? A- It blocks alpha-receptors B- It block beta-receptors C- It prolongs QT interval D- It prolongs PR interval E- It suppresses excitability in ischemic areas of the heart Q- Outpatient prophylaxis of superior ventricular tachycardia (SVT) is best accomplished by which of […]
Repeated USMLE Questions Step 1- 370
Q- A 12-year-old girl is brought to the emergency room with her parents. Consent form the parents is needed to proceed with the treatment. The parents speak Spanish and very little English. What is the best next step of action? A- Find any Spanish-speaking person in the clinic to interpret the instructions B- Speak to […]
Pharmacology MCQs- 276
Q- Reflex tachycardia caused by systemic albuterol can be blocked by which of the following medications? A- Dobutamine B- Metoprolol C- Phenylephrine D- Prazosin Q- Which one of the following medications can be used safely in cases of lack of liver function? A- Clonazepam B- Diazepam C- Lorazepam D- Midazolam Q- Which of the following […]