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Which laboratory test result will the nurse review to determine the effects of therapy for a patient being treated for heart failure?

A.

Homocysteine

B.

Low-density lipoprotein (LDL)

C.

Troponin

D.

B-type natriuretic peptide (BNP)

Answer and Explanation

The Correct Answer is D

A. Homocysteine is a marker for cardiovascular risk but is not used to monitor heart failure therapy.

B. LDL levels are associated with cholesterol management and do not directly reflect heart failure treatment effectiveness.

C. Troponin is a marker of myocardial injury, not heart failure severity.

D. B-type natriuretic peptide (BNP) levels correlate with the severity of heart failure and are used to monitor the effectiveness of heart failure therapy.


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Related Questions

Correct Answer is {"A":{"answers":"B"},"B":{"answers":"C"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"A"},"F":{"answers":"A"}}

Explanation

Administer furosemide IV: Furosemide is a diuretic used to manage fluid overload, which is not the primary concern in this scenario. The client presents with chest pain suggestive of a cardiac event, so other interventions should take priority.

Prepare the client for intubation: Intubation is not indicated at this stage as the patient is conscious, has a respiratory rate of 18/min, and there is no immediate indication of airway compromise. Oxygen therapy is more appropriate.

Obtain the client’s full family history: While obtaining a full family history is important for a comprehensive assessment, it is not a high priority in the acute management of this client who presents with symptoms suggestive of a myocardial infarction (MI).

Administer O2 to maintain oxygen saturation greater than 90%: The client’s oxygen saturation is 88%, which is below the desired level. Administering oxygen to maintain saturation greater than 90% is a high-priority intervention to improve oxygenation.

Apply continuous ECG monitoring: Continuous ECG monitoring is essential in this scenario to monitor for arrhythmias and assess for ongoing ischemia, given the client’s chest pain, irregular pulse, and the high likelihood of an acute coronary syndrome.

Obtain vascular access: Establishing vascular access is a high priority to ensure the ability to administer medications, fluids, and for potential blood draws, especially in an emergency setting where rapid intervention may be necessary.

Correct Answer is A

Explanation

A. Coronary artery bypass graft (CABG) surgery is typically recommended for patients with significant occlusion of the left main coronary artery, as it effectively restores blood flow to the heart muscle by bypassing the blocked artery.

B. Radiofrequency catheter ablation is used to treat arrhythmias, not coronary artery occlusions.

C. Implantable cardioverter-defibrillator (ICD) placement is for managing life-threatening arrhythmias, not directly for treating coronary artery blockages.

D. A circulatory assist device is used in severe cases of heart failure, but it does not address the underlying issue of coronary artery occlusion.

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