Q- Which one of the following actions is produced by muscarinic cholinergic agonists? A- Activation of inhibitory G protein B- Decreased IP3 production C- Decreased release of intracellular calcium D- Inhibition of phospholipase C Q- Organophosphorus poisoning can be treated with which of the following agents? A- Atenolol B- Atropine C- Ipratropium bromide D- Physostigmine […]
usmle step 1
Pharmacology MCQs- 280
Q- Which of the following is the currently drug of choice for the treatment of cutaneous anthrax? A- Azithromycin B- Ciprofloxacin C- Gentamicin D- Penicillin Q- Which of the following is the mechanism of action of benzodiazepines in the treatment of insomnia? A- Alpha adrenergic antagonist B- Binds to serotonin receptors C- Binds to GABA […]
Anatomy MCQs- 1
Q- Anterior spinal artery arises from which of the following arteries? A- Basilar artery B- External carotid artery C- Internal carotid artery D- Vertebral artery Q- Sensations to the external auditory meatus is innervated by which of the following nerves? A- Auriculotemporal nerve B- Great auricular nerve C- Facial nerve D- Vagus nerve Q- Bicornuate […]
Pharmacology MCQs- 279
Q- Which of the following side effects occurs with both tricyclic antidepressants and phenothiazines? A- Excessive salivation B- Orthostatic hypotension C- Seizures D- Weight loss Q- Which of the following medications is useful to distinguish nephrogenic from neurogenic diabetes insipidus? A- Acetazolamide B- Demeclocycline C- Desmopressin D- Hydrochlorothiazide Q- Which of the following drugs is […]
Repeated USMLE Questions Step 1- 372
Q- A study found that incidence of lung cancer in smokers is 230/100,000 and in non-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 […]