Pharmacology of Beta Receptors

What is the effect of stimulating α2-receptors on blood pressure?

What is the effect of β2 receptors on respiratory smooth muscle?

What is the effect of dopamine on heart rate at low doses?

What is the primary mechanism of epinephrine's effect on coronary blood flow?

What is the primary effect of β1-receptors on the heart?

What is the half-life of elimination of epinephrine?

What is the effect of norepinephrine on heart rate?

What is the primary mechanism of dopamine's indirect effects?

What is the effect of isoproterenol on myocardial O2 supply?

What is the primary effect of dobutamine on the heart?

What is the mechanism of norepinephrine's vasoconstrictor effect?

What is the effect of dopamine on peripheral vascular resistance at high doses?

What is the primary effect of β1 agonists on the heart?

What is the mechanism of action of ephedrine?

What is the primary effect of phenylephrine on the heart?

What is the primary mechanism of action of phentolamine?

What is the typical dose range for dopamine infusion?

What is the primary use of phenylephrine nasal drops/spray?

What is the primary effect of phenoxybenzamine on blood pressure?

What is the main use of yohimbine?

What is the FDA warning associated with droperidol?

What is the effect of clonidine on heart rate?

What is the main mechanism of action of dexmedetomidine?

What is the effect of phenoxybenzamine on insulin secretion?

What is the primary indication for initiating β blockade preoperatively?

What is the primary advantage of using cardioselective β blockers?

What is the effect of β blockers on the sympathetic nervous system?

What is the dose of esmolol for controlling heart rate?

What is the mechanism of labetalol's action?

What is the antidote for β blocker overdose?