Answer:
Effect on the a2-andrenergic receptors
Step-by-step explanation:
Unlike dopamine, dobutamine does not have any effect on the α2‐adrenergic receptors. Dobutamine is preferred when there is a need to improve low cardiac output. Dobutamine should be avoided in patients affected by outflow obstructions, pulmonic stenosis, or hypertrophic obstructive cardiomyopathy.