A nurse is caring for a client who has myasthenia gravis. The nurse should recognize that this disease is caused by which of the following types of hypersensitivities?

The nurse should check the client's vital signs first because nausea and weakness are signs of digoxin toxicity, which can also cause bradycardia, hypotension, and arrhythmias. The nurse should also assess the client's serum digoxin level, potassium level, and electrocardiogram.

Request a dietitian consult is wrong because it is not the priority action and it does not address the possible cause of the client's symptoms. A dietitian consult may be helpful to provide nutritional education and guidance, but only after ruling out or treating digoxin toxicity.

Suggest that the client rests before eating the meal is wrong because it is not the priority action and it may delay the diagnosis and treatment of digoxin toxicity. The nurse should not assume that the client's symptoms are due to fatigue or lack of appetite, but rather investigate for any underlying problems.

Request an order for an antiemetic is wrong because it is not the priority action and it may mask the symptoms of digoxin toxicity. The nurse should not administer any medications that could interact with digoxin or worsen its effects, but rather notify the provider and follow the protocol for digoxin toxicity management.

Choice A reason:

This statement is incorrect because it trivializes the patient's concerns and implies that enjoyment is the primary goal, which is not the case. The main purpose of cardiac rehabilitation is to improve health outcomes, not just to make the routine enjoyable.

Choice B reason:

While exercise is beneficial for heart health, this statement is too general and does not address the specific benefits of cardiac rehabilitation for someone who has had a myocardial infarction.

The correct answer is C:

"Cardiac rehabilitation cannot undo the damage to your heart but it can help you get back to your previous level of activity safely." Cardiac rehabilitation is crucial for patients who have experienced a myocardial infarction. It provides a structured program that includes exercise, education, and support to help patients improve their cardiovascular health and prevent future cardiac events.

Choice D reason:

Deferring to the doctor's expertise does not educate the patient about the benefits of cardiac rehabilitation. It's important for patients to understand why they are participating in the program.