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Beta2 receptor stimulation includes all of the following effects EXCEPT:
Stimulation of renin secretion Fall of potassium concentration in plasma Relaxation of bladder, uterus Tachycardia |
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Beta1 receptor stimulation includes all of the following effects EXCEPT:
Increase in contractility Bronchodilation Tachycardia Increase in conduction velocity in the atrioventricular node |
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Which of the following drugs causes bronchodilation without significant cardiac stimulation?
Isoprenaline Terbutaline Xylometazoline Methoxamine |
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All of the following agents are beta receptor agonists EXCEPT:
Epinephrine Isoproterenol Methoxamine Dobutamine |
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A nonselective beta receptor agonist causes all of the following effects EXCEPT:
Increase cardiac output Increase peripheral arterial resistance Decrease peripheral arterial resistance Decrease the mean pressure |
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A relatively pure alfa agonist causes all of the following effects EXCEPT:
Increase peripheral arterial resistance Increase venous return Has no effect on blood vessels Reflex bradycardia |
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The effects of sympathomimetics on blood pressure are associated with their effects on:
The heart The peripheral resistance The venous return All of the above |
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In which of the following tissues both alfa and beta1 adrenergic stimulation produces the same effect?
Blood vessels Intestine Uterus Bronchial muscles |
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A 5HT receptor agonist useful in migraine is
Sumatriptan Ketanserin Ergotamine Methysergide |
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An agent used in Prinzmetal angina has spasmolytic action which increases coronary blood supply is
Nitroglycerine Nifedipine Timolol Isosorbide mononitrate
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The risk of Digitalis toxicity is significantly increased by concomitant administration of
Triamterene Lidocaine Captopril Hydrochlorthiazide
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A drug which causes pink to brownish skin pigmentation within a few weeks of the initiation of therapy is
Itraconazole Clofazimine Lomefloxacin Neomycin
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A term which describes a cofactor that is finally bound to an apoenzyme is
Holoenzyme Prosthetic group Coenzyme Transferase |
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Lactose intolerance is because of the lack of
Acid phosphatase Lactate dehydrogenase Galactose-1-phosphate-uridyl transferase Amylase
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Plasmid is a
Macromolecule involved in the protein synthesis Circular piece of duplex DNA A hybrid DNA that is formed by joining pieces DNA (Your selection was wrong) Endogenous substance secreted by one type of cell
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The metabolic function of Riboflavin involves the following
FMN and FAD NADP and NADPH AMP and ATP Retine and Retinine |
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A metabolite of SPIRONOLACTONE is
Aldosterone Canrenone Corticosterone Pregnenolone |
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