Vasomotor reversal of dale is demonstrated by
Correct Answer: Fall in blood pressure by adrenaline pretreated with phentolamine
Description: Ans. (d) Fall in blood pressure by adrenaline pretreated with phentolamine(Ref: Ganong, 25th ed/p.353)If the subject is given a blocker and then if epinephrine is injected, vasodilation and decrease in BP is seen. This effect is called "Vasomotor reversal of Dale"
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