A 55-year-old woman on ICU following cardiac surgery has a cardiac index of 1.6 L/min/m2 measured by transpulmonary thermodilution (PiCCO). The reside...

Question

A 55-year-old woman on ICU following cardiac surgery has a cardiac index of 1.6 L/min/m2 measured by transpulmonary thermodilution (PiCCO). The resident proposes starting dobutamine. The consultant asks about the expected haemodynamic effects of dobutamine. Which receptor profile best describes dobutamine's action?

Accepted Answer

Predominant beta-1 agonist with some beta-2 agonist activity, and weak alpha-1 activity

Answer

Pure alpha-1 adrenergic agonist

Answer

Pure beta-2 adrenergic agonist

Answer

Non-adrenergic vasopressin V1 receptor agonist

Answer

Phosphodiesterase-3 inhibitor

uk-fficm MCQ (SBA): Pharmacology of Inotropes