Final answer:
For a client with atrial fibrillation, a nurse should anticipate administering Propranolol (Inderal), a beta blocker, which is used to manage heart arrhythmias by slowing the heart rate and controlling the ventricular rate.
Step-by-step explanation:
Among the provided options, the nurse should anticipate administering Propranolol (Inderal) for a client with atrial fibrillation. Propranolol is a beta blocker that helps slow the heart rate and can be used to manage arrhythmias, including atrial fibrillation. This medication works by blocking beta-1 receptors, which play a significant role in the regulation of heart rate and myocardial contractility. Beta blockers are recognized for their ability to treat conditions like hypertension and angina, and in the context of atrial fibrillation, they are utilized to control the ventricular rate, potentially reducing the risk of further complications.
It is important to note that Atropine is often used to treat bradycardia (slow heart rate), Epinephrine is a drug that stimulates the heart and is typically used in emergency situations like anaphylactic shock or cardiac arrest, and Phenytoin (Dilantin) is primarily used for seizure disorders and occasionally for certain types of cardiac arrhythmias, but not typically as a first-line treatment for atrial fibrillation.