Because of its selective alpha1 antagonistic properties, labetalol is indicated in:
a. Tachycardia
b. Ventricular fibrillation
c. Hypovolemia
d. Acute hypertensive emergency
a. Although labetalol may be used in supraventricular tachycardia, it's alpha1 antagonism results in vasodilation and makes it more suitable for hypertensive emergencies.
b. No indication exists.
c. Contraindicated.
d. Correct.
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