Final answer:
A beta-1 agonist is commonly prescribed for heart failure, as it increases heart contractility and rate, improving cardiac function. This is in contrast to beta-blockers, which slow the heart rate and are used for hypertension.
Step-by-step explanation:
A medication that is classified as a beta-1 agonist is most commonly prescribed for a client with heart failure (Option D). Beta-1 agonists work by stimulating the beta-1 receptors in the heart, which leads to increased heart muscle contractility and heart rate, thereby improving cardiac output. This makes them particularly useful in treating heart failure, where the heart's ability to pump blood is compromised.
Beta-blockers, on the other hand, are typically prescribed to treat conditions such as hypertension and are known to block the beta receptors, thereby slowing heart rate and reducing blood pressure. In cases of heart failure, medications aimed at enhancing heart function, like beta-1 agonists, are crucial for improving the symptoms associated with a weakened heart.