During the acute phase of a severe pulmonary embolus, the goal of nursing care is to

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: The correct answer is B - Give Digibind as an antidote. This is the priority action because Digibind is the specific antidote for digoxin toxicity, effectively binding to digoxin and reversing its toxic effects. Checking a potassium level (A) may be important, but addressing the toxicity is the priority. Changing dosing (C) or giving potassium supplement (D) do not directly address the toxicity and may delay appropriate treatment.

Correct Answer: B

Rationale: The correct answer is B because non-cardio-selective beta blockers can inhibit glycogenolysis in the liver, leading to decreased production of glucose from glycogen. This can result in a drop in blood sugar levels. Choice A is incorrect because beta blockers do not increase breakdown of glycogen. Choice C is incorrect as beta blockers do impact blood sugar levels. Choice D is incorrect because beta blockers do not increase cellular uptake of glucose.

Correct Answer: D

Rationale: The correct answer is D: Class IV. Calcium channel blockers, such as verapamil and diltiazem, belong to Class IV anti-arrhythmic agents. These drugs work by blocking calcium channels in cardiac cells, leading to decreased conduction through the AV node and slowing of the heart rate. This is particularly effective in treating arrhythmias such as atrial fibrillation or supraventricular tachycardia. Choices A, B, and C are incorrect: A: Class IA agents (e.g., quinidine, procainamide) block sodium channels and have effects on potassium channels, not calcium channels. B: Class II agents (e.g., beta blockers) work by blocking beta-adrenergic receptors, not calcium channels. C: Class III agents (e.g., amiodarone, sotalol) primarily block potassium channels, not calcium channels, to prolong repolarization.

Correct Answer: B

Rationale: The correct answer is B: Potassium chloride. ACE inhibitors can cause potassium levels to increase, leading to hyperkalemia. Potassium chloride is a potassium supplement that can further elevate potassium levels, potentially causing adverse effects. Sodium chloride (A) does not directly impact potassium levels. Cayenne pepper (C) and ground black pepper (D) are not known to interact significantly with ACE inhibitors. Hence, the nurse should be concerned about the client taking potassium chloride while on an ACE inhibitor to avoid complications related to hyperkalemia.