A client arrives at the emergency department with chest pain after taking sildenafil.
Based on the client's history, which medication should the nurse withhold?

When assessing an older client with left-sided heart failure (HF), the most important intervention for the practical nurse (PN) to implement is to auscultate all lung fields. Left-sided heart failure is characterized by the inability of the left ventricle to effectively pump blood, leading to fluid accumulation in the lungs. Auscultating all lung fields allows the PN to assess for the presence of abnormal lung sounds such as crackles, indicating pulmonary congestion.

Let's evaluate the other options:

a) Inspect for sacral edema.
Sacral edema is commonly associated with right-sided heart failure, not left-sided heart failure. While it is important to assess for edema in clients with heart failure, inspecting for sacral edema may not be the most immediate and crucial intervention in this specific case.

b) Measure urinary output.
Measuring urinary output is a valuable assessment in many clinical situations, but it may not be the most vital intervention in the context of left-sided heart failure. Monitoring urinary output is more relevant in assessing kidney function and fluid balance rather than directly assessing the severity of left-sided heart failure.

d) Check mental acuity.
Checking mental acuity is important in assessing the overall condition of the client, but it is not the most crucial intervention specifically related to left-sided heart failure. Mental status evaluation is more useful in identifying signs of altered mental status or potential complications, rather than directly assessing the impact of left-sided heart failure.

In summary, when assessing an older client with left-sided heart failure, the most important intervention for the practical nurse (PN) to implement is to auscultate all lung fields. This allows for the detection of abnormal lung sounds associated with pulmonary congestion, a hallmark sign of left-sided heart failure.

Choice A rationale:

Verapamil is a calcium channel blocker and is expected to decrease heart rate by inhibiting calcium influx into cardiac cells, particularly in the SA (sinoatrial) node, where it can slow down the heart's electrical impulses.

Choice B rationale:

Increased contractility is not an expected outcome of verapamil use. In fact, verapamil's main action is to decrease myocardial contractility, making it useful for treating conditions like angina and atrial fibrillation.

Choice C rationale:

Verapamil is known to dilate coronary arteries, which can improve blood flow to the heart muscle and relieve symptoms of angina.

Choice D rationale:

Reduced blood pressure is an expected outcome of verapamil use due to its vasodilatory effects on peripheral blood vessels. This can be beneficial in treating hypertension and angina.

Choice E rationale:

Relieved chest pain is an expected outcome of verapamil use, particularly in the case of variant angina (Prinzmetal's angina), as it helps to relax coronary arteries and reduce coronary artery spasm, which is a common cause of chest pain in this condition.