The nurse identifies that a patient with chronic kidney disease is at risk for which electrolyte disturbance?

This statement indicates effective learning because serum cardiac markers are indeed proteins that are released from necrotic (damaged) heart muscle cells when there is myocardial injury, such as in acute coronary syndrome (ACS). These markers are measured in blood tests and help in the diagnosis and assessment of ACS, particularly myocardial infarction (heart attack).

Option A is incorrect because a nitroprusside stress echocardiogram is not used for acute pericarditis. It is a diagnostic test used for evaluating coronary artery disease and ischemia.

Option B is incorrect because a pathologic Q wave is not always present in the electrocardiogram (ECG) of patients with unstable angina. It is a characteristic finding in the ECG of patients with a previous myocardial infarction (heart attack) but may not be present in unstable angina.

Option D is incorrect because coronary angiography is not the only way to confirm the diagnosis of unstable angina. Unstable angina is primarily diagnosed based on the clinical presentation, symptoms, and changes in the ECG. Coronary angiography is an invasive procedure used to visualize the coronary arteries directly and is typically reserved for cases where further assessment and intervention are needed, such as in cases of suspected coronary artery disease.

Resumption of sexual activity after a myocardial infarction (MI) is an important topic to address as part of the overall recovery and rehabilitation process. It should be discussed along with other physical activities during the patient's recovery. The nurse should initiate the discussion in a supportive and non-judgmental manner, addressing the patient's concerns, fears, and questions about sexual activity after an MI.

Sexual activity is a normal part of life, and patients may have concerns about the safety and appropriateness of engaging in sexual activity after a significant cardiac event like an MI. Discussing it along with other physical activities helps normalize the topic and allows the nurse to provide accurate information, address any misconceptions, and offer guidance on when and how to resume sexual activity safely. Patients should be encouraged to have an open dialogue with their healthcare provider about their concerns and any specific questions they may have related to resuming sexual activity.