A nurse is caring for a client who has a placenta previa.

Which of the following findings should the nurse expect?

The nurse should first administer oxygen at 2 L/min via nasal cannula because the client has signs of hypoxemia (low oxygen saturation) and respiratory distress (increased respiratory rate) that may worsen the chest pain and myocardial ischemia. Oxygen therapy can help improve oxygen delivery to the heart muscle and reduce the workload of the heart.
The nurse should then administer sublingual nitroglycerin as prescribed because nitroglycerin is a vasodilator that can help relieve chest pain by dilating the coronary arteries and improving blood flow to the heart. Nitroglycerin can also lower blood pressure and reduce cardiac preload and afterload, which can decrease myocardial oxygen demand.

Other choices:

• Prepare the client for cardiac catheterization: This may be a later intervention if the chest pain persists or if the client has a confirmed myocardial infarction, but it is not the first priority for the nurse. Cardiac catheterization is an invasive procedure that involves inserting a catheter into a large artery and advancing it to the coronary arteries to visualize any blockages or stenosis. The procedure may also involve angioplasty or stent placement to restore blood flow to the affected area.

• Request a prescription for an increase in statin: This may be a long-term intervention to lower the client’s LDL cholesterol and prevent further plaque formation in the coronary arteries, but it is not an immediate intervention for chest pain. Statins are lipid-lowering drugs that can reduce the risk of cardiovascular events in clients with CAD, but they do not have a direct effect on chest pain or myocardial ischemia.

• Check a STAT cardiac troponin: This may be a diagnostic test to confirm or rule out a myocardial infarction, but it is not an intervention for chest pain. Cardiac troponin is a protein that is released into the bloodstream when there is damage to the heart muscle. Elevated levels of cardiac troponin indicate a myocardial infarction or other cardiac injury.

• Request a prescription for a beta-blocker: This may be an adjunctive therapy to reduce chest pain and prevent complications, but it is not the first-line intervention for chest pain. Beta-blockers are drugs that block the effects of adrenaline on the heart and blood vessels, which can lower heart rate, blood pressure, and myocardial oxygen demand. Beta-blockers can also prevent arrhythmias and reduce mortality in clients with CAD.

The correct answer is d. Evaluate functioning of the suction device.

Choice D rationale:

• Prompt assessment of the suction device is crucial to determine if it's functioning properly.If the suction is inadequate,it can lead to gastric contents accumulating and potentially causing vomiting.
• Assessing the suction device first allows for timely interventionif it's not working correctly,preventing further complications and discomfort for the client.

Choice A rationale:

• Replacing the NG tube might be necessary if it's dislodged or blocked, but it shouldn't be the immediate action.
• Evaluating the suction device first can help determine if the NG tube itself is the issue or if the problem lies with the suction.

Choice B rationale:

• Providing oral hygiene care is important for comfort and to prevent aspiration, but it's not the priority intervention in this situation.
• Addressing the cause of the vomiting, which could be related to suction malfunction, takes precedence.

Choice C rationale:

• Administering an antiemetic might be helpful to control nausea and vomiting, but it doesn't address the underlying cause.
• Evaluating the suction device first is essential to ensure proper gastric decompression and prevent further vomiting episodes.