A nurse is teaching the partner of a client who had an acute myocardial infarction (MI) about the reason blood was drawn from the client. Which of the following statements should the nurse make regarding cardiac enzyme studies?

Rationale for A:

A small hematoma at the catheter insertion site is common after cardiac catheterization due to the puncture of blood vessels. The nurse should inform the client that this may occur but reassure them that it typically resolves on its own.

Rationale for B:

The dressing usually remains intact for 24 to 48 hours post-procedure to prevent infection and promote healing. The client should be instructed to keep the dressing clean and dry until the healthcare provider gives specific instructions.

Rationale for C: Clients are usually advised to avoid strenuous activities and exercise for several days after the procedure, not to resume regular exercise the next day.

Rationale for D: Pain medication may be necessary to manage discomfort post-procedure, and the nurse should encourage the client to take pain relief as needed.

An exercise stress test is a diagnostic procedure that measures the heart's response to physical activity. The client is instructed to walk on a treadmill or pedal a stationary bike while their heart rate, blood pressure, and electrocardiogram are monitored. The test can help detect coronary artery disease, arrhythmias, or other cardiac problems.

The client should follow certain guidelines before the test, such as:

• Avoiding caffeine, nicotine, alcohol, and stimulants for at least 4 hours before the test, as they can affect the heart rate and blood pressure.
• Fasting for at least 2 hours before the test, as eating can affect the blood flow to the heart.
• Getting adequate rest and sleep the night before the test, as fatigue can affect the performance and results of the test.
• Wearing comfortable clothing and shoes that are suitable for exercise.
• Informing the provider of any medications they are taking, as some medications may need to be withheld or adjusted before the test, such as beta blockers, calcium channel blockers, nitrates, or antiarrhythmics. These medications can affect the heart rate and blood pressure and interfere with the interpretation of the test results.

Therefore, the comment made by the client that indicates a need for further teaching is "I'll take my heart medications the morning of my test." The client should consult with their provider about whether they should take their heart medications or not before the test. The other comments made by the client are appropriate and indicate that they understand the pre-test instructions.