client with acute coronary syndrome has returned to the coronary care unit after having angioplasty with stent placement. Which assessment data indicate the need for immediate action by the nurse?

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.

Among the given options, the assessment data that indicate the need for immediate action by the nurse is a blood pressure of 103/54 mm Hg. This blood pressure reading indicates hypotension, which can be concerning for a post-angioplasty patient.

Angioplasty with stent placement is an invasive procedure, and patients may experience fluctuations in blood pressure during the immediate post-operative period. Hypotension after angioplasty can be a sign of inadequate cardiac output, which may be due to issues like bleeding, fluid loss, or heart dysfunction. Inadequate blood pressure can lead to decreased perfusion to vital organs, including the heart itself, and can be life-threatening.

Options A, B, and D are also important to address:

A) Heart rate 102 beats/min: A heart rate of 102 beats per minute may indicate tachycardia, which can be expected after a procedure like angioplasty. However, it is not as urgent of a concern as hypotension, and it may be a normal compensatory response to the body's stress.

B) Report of chest pain: Chest pain after angioplasty can be common, but it should be evaluated further to ensure it is not indicative of complications such as coronary artery spasms, clot formation, or restenosis of the treated artery. While this is an important issue to address, it does not take precedence over hypotension.

D) Pedal pulses 1+ bilaterally: This finding suggests that the peripheral pulses in the feet are weak, and it could be related to the patient's medical condition, medications, or positioning. While it requires attention, it is not an immediate threat to the patient's life compared to severe hypotension.

Therefore, the nurse should prioritize assessing and addressing the low blood pressure to prevent further complications and ensure the patient's stability. The nurse should promptly notify the healthcare provider and implement appropriate interventions, such as administering intravenous fluids, to increase blood pressure to a safe level.