A client recovering from heart surgery develops pericarditis and reports level 6 (0 to 10 scale) chest pain with deep breathing. Which prescribed PRN medication will be the most appropriate for the nurse to give?

When a patient with dilated cardiomyopathy develops new onset atrial fibrillation (AF) that has been unresponsive to drug therapy, the nurse should prioritize patient education about anticoagulant therapy. Atrial fibrillation increases the risk of blood clots forming in the heart's atria due to the irregular and ineffective pumping of blood. These blood clots can potentially travel to other parts of the body, leading to serious complications such as stroke.

Anticoagulant therapy, also known as blood-thinning medication, is commonly prescribed for patients with atrial fibrillation to prevent the formation of blood clots. The most common anticoagulant prescribed for AF is warfarin or direct oral anticoagulants (DOACs) such as apixaban, rivaroxaban, dabigatran, or edoxaban. The nurse should educate the patient about the importance of taking the anticoagulant as prescribed and the need for regular monitoring of clotting times (INR for warfarin) to ensure the medication is effective and the dose is appropriate.

While other options listed in the choices may be relevant in specific situations, the priority in this case is to address the potential risk of stroke associated with atrial fibrillation and the importance of anticoagulant therapy to manage that risk effectively.

For a patient admitted with syncopal (fainting) episodes of unknown origin, the most appropriate action to include in the plan of care is to instruct the patient to call for assistance before getting out of bed.

Syncope can be caused by various factors, including orthostatic hypotension (a drop in blood pressure upon standing) or cardiac-related issues. One of the common triggers for syncopal episodes is getting up from a lying or sitting position too quickly. By instructing the patient to call for assistance before getting out of bed, the nurse aims to prevent falls and potential injuries that may occur due to sudden fainting episodes.

While it's essential to educate the patient about potential causes of syncope (option A) and the benefits of implantable cardioverter-defibrillators (option B) if applicable to their condition, these actions may not directly address the immediate safety concern of preventing falls during syncopal episodes.

Option D, teaching the patient about the need to avoid caffeine and other stimulants, may be relevant if stimulants are identified as potential triggers for syncope in this particular patient. However, it is not the most critical action to include in the initial plan of care for a patient with syncopal episodes of unknown origin.

In summary, the top priority for the nurse is to ensure the safety of the patient by instructing them to call for assistance before getting out of bed to prevent falls during syncopal episodes until further evaluation and diagnosis can determine the cause of the fainting episodes.