Q- Which of the following correctly describes pleiotropy? A- Increased severity of a disease in succeeding generations B- Not all individuals with mutant genotype show the same mutant phenotype C- One gene contributes to multiple phenotypic effects D- Phenotype is always the same among individuals having the same genotype Q- Decreased production of which type […]
Pharmacology MCQs- 263
Q- Acute decrease in response to a drug after initial or repeated intake is known as which of the following drug interactions? A- Additive B- Permissive C- Synergetic D- Tachyphylactic Q- Which one of the following correctly describes nicotinic Ach receptors? A- Enzyme-linked receptors B- G-protein–coupled receptors C- Ligand-gated Na+/K+ channels Q- Which of the […]
Repeated USMLE Questions Step 2 CK- 472
Q- Which one of the following features characterizes Crohn’s disease from ulcerative colitis? A- Bloody diarrhea B- Colectomy is curative C- Continuous disease beginning at rectum and extending without skipped areas D- Perineal fissures and fistulas Q- Which of the following is the main site of action of HMG-CoA reductase inhibitors? A- Blood B- Liver […]
Repeated USMLE Questions Step 1- 343
Q- Which one of these medication groups is contraindicated in a patient with narrow-angle glaucoma? A- Beta blockers B- Cholinomimetics C- Diuretics D- Muscarinic-receptor antagonists Q- Which of the following statements is true about live attenuated vaccine? A- Close contacts of influenza patients can be safely vaccinated with live attenuated vaccine B- It is mainly […]
Pharmacology MCQs- 262
Q- Naloxone is the treatment of choice of which one of the following toxicities? A- Amitriptyline toxicity B- Citalopram overdose C- Hydrocodone toxicity D- Methylphenidate overdose Q- Administration of clopidogrel with aspirin is an example of which of the following drug interactions? A- Additive B- Permissive C- Synergistic D- Tachyphylactic Q- Which of the following […]
Repeated USMLE Questions Step 2 CK- 471
Q- A young man complains of syncope, dyspnea and chest pain after exercise. A crescendo-decrescendo systolic murmur is heard over the left sternal border without radiation. What is the most likely etiology? A- Aortic dissection B- Aortic regurgitation C- Aortic stenosis D- Hypertrophic cardiomyopathy Q- A 9-month-child who was delivered after premature labor and is […]