The nurse is providing discharge education to a client diagnosed with heart failure. What should the nurse teach this client to do to assess fluid balance in the home setting?

A. This result indicates muscle injury but does not specify the source.

This statement is partly correct. An elevated troponin I level does indicate muscle injury, specifically damage to the heart muscle. However, troponin I is highly specific to cardiac muscle, so an elevated level would indeed specify the source as cardiac or myocardial injury.

B. Because the client has a history of unstable angina, this is a poor indicator of myocardial injury.

This statement is incorrect. A history of unstable angina does not diminish the significance of an elevated troponin I level. In fact, unstable angina is itself a serious condition that can lead to myocardial injury or heart attack, and an elevated troponin I level in this context indicates ongoing or recent myocardial damage.

C. This is only an accurate indicator of myocardial damage when it reaches its peak in 24 hours.

This statement is not entirely accurate. While it is true that troponin I levels may continue to rise and peak within 12-24 hours after the onset of myocardial injury, an elevated troponin I level at any point is still a significant indicator of myocardial damage. It's essential to recognize elevated troponin I levels promptly to initiate appropriate interventions and monitor the client's cardiac status closely.

D. This is an accurate indicator of myocardial injury.

This statement is correct. An elevated troponin I level is a highly sensitive and specific marker of myocardial injury. It indicates damage to the heart muscle, which can occur due to conditions like unstable angina, heart attack (myocardial infarction), myocarditis, or other cardiac issues. Therefore, recognizing an elevated troponin I level in a client with unstable angina is crucial for proper management and further evaluation.

A. Furosemide 10mg IV bolus every 12 hours:

Furosemide is a loop diuretic commonly used in heart failure management to reduce fluid overload. The prescribed dose of 10 mg IV bolus every 12 hours is within the typical range for furosemide administration in acute heart failure.

B. Morphine sulfate 2 mg IV bolus every 2 hr PRN pain:

Morphine sulfate is often used in the management of acute pain, including pain associated with myocardial infarction. The prescribed dose of 2 mg IV bolus every 2 hours PRN for pain is appropriate and aligns with standard pain management protocols.

C. Laboratory testing of serum potassium upon admission:

It is common practice to perform laboratory testing, including serum potassium levels, upon admission for clients with acute heart failure, especially if they are receiving diuretics or other medications that can affect electrolyte balance. This prescription is appropriate and necessary for monitoring the client's condition.

D. 0.9% normal saline IV at 150 mL/hr continuous:

This prescription raises a concern because administering 0.9% normal saline at a rate of 150 mL/hr continuously may lead to fluid overload in a client with acute heart failure. The rate of IV fluid administration should be carefully assessed based on the client's fluid status, renal function, and hemodynamic parameters to avoid exacerbating heart failure symptoms.