Q- Extrapyramidal side effects develop after the use of haloperidol due to its effect on which of the following receptors? A- Alpha-adrenergic receptors B- Dopamine receptors C- Muscarinic receptors D- Nicotinic receptors Q- Which of the following is the main action of carbidopa when it is used in combination with levodopa in the management of […]
usmle step 1
USMLE Review- 6
Q- A CT scan of the chest shows a focal, wedge-shaped area of hemorrhage in a segment of the lung. Which of the following is the most likely cause of this finding? A- Arteriosclerosis B- Atherosclerosis C- Embolism D- Thrombosis Q- Achilles tendon xanthoma is most likely characteristic of which one of the following conditions? […]
Repeated USMLE Questions Step 1- 380
Q- When you suggested to a mother to vaccinate her child with MMR on scheduled basis, she refused for religious belief. What is the most appropriate nest step? A- Explain to her with documentation the benefits and risks of immunization B- Obtain a court order C- Proceed with immunization D- Report her to health authorities […]
Pharmacology MCQs- 296
Q- Drug-to-drug interaction based on absorption, transformation, distribution and excretion is considered which one of the following types of interaction? A- Chemical interaction B- Pharmaceutical interaction C- Pharmacodynamic interaction D- Pharmacokinetic interaction Q- The effect of medications on parasympathetic function declines slowly in which one of the following organs? A- Eye B- Glands C- Heart […]
Pharmacology MCQs- 295
Q- Which one of the following anti-Parkinsonism medications should be avoided in patients with glaucoma? A- Bromocriptine B- Levodopa C- Selegiline D- Trihexyphenidyl Q- Which one of the following intravenous anesthesia has antiemetic action? A- Fentanyl B- Ketamine C- Propofol D- Thiopental Q- Interferon alpha is indicated for the treatment of which one of the […]
Repeated USMLE Questions Step 1- 379
Q- A young boy presents with multiple skin lesions for more than a year. He is sensitive to sun and biopsies of some of his lesions show squamous cell carcinoma. Which of the following mutations is most likely present in this condition? A- Missense mutation B- Nonsense mutation C- Point mutation D- Thymidine dimers Q- […]