A nurse is providing preoperative teaching to a client about the administration of morphine via a PCA pump.
Which of the following statements by the client indicates an understanding of the teaching?

"Using this machine increases my risk of overdose."

"I can get pain medication any time as long as I press the button."

"My partner can press my pain medication button for me if I am sleeping."

"I will receive a limited amount of pain medication when I press the button." .

Answer and Explanation

The Correct Answer is D

The correct answer is D.

Choice A reason: “A. Using this machine increases my risk of overdose.” This statement is incorrect because PCA pumps are designed with safety mechanisms to prevent overdose. The pump is programmed to deliver a specific dose of medication at set intervals, and it will not dispense more medication than what is prescribed by the healthcare provider.

Choice B reason: “B. I can get pain medication any time as long as I press the button.” While it is true that the patient can self-administer medication, PCA pumps have a lockout interval that prevents the machine from delivering another dose until a certain amount of time has passed, ensuring that the patient cannot receive medication too frequently.

Choice C reason: “C. My partner can press my pain medication button for me if I am sleeping.” This statement is incorrect. Only the patient should press the button on the PCA pump to ensure that the medication is administered safely and according to the patient’s current level of pain. Allowing someone else to press the button could lead to unsafe dosing.

Choice D reason: “D. I will receive a limited amount of pain medication when I press the button.” This is the correct statement. The PCA pump allows the patient to administer a controlled amount of pain medication within safe limits set by the healthcare provider. The pump is programmed to deliver a specific dose of medication, and there is a limit to the number of doses that can be administered per hour.

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Correct Answer is A

Explanation

A. Atrial fibrillation. B. Ventricular asystole. C. Second-degree heart block. D. Sinus tachycardia.

Correct Answer is A

Explanation

Choice A rationale:

The described cardiac rhythm with a wavy baseline, no distinguishable P waves, and an increased heart rate is consistent with atrial fibrillation. In atrial fibrillation, the atria quiver instead of contracting effectively, leading to an irregular and often rapid heart rate. This rhythm is characterized by the absence of distinct P waves on the ECG.

Choice B rationale:

Ventricular asystole is a flatline on the ECG, indicating the absence of electrical activity in the heart. It is a life-threatening arrhythmia and requires immediate intervention with cardiopulmonary resuscitation (CPR) and advanced cardiac life support (ACLS) protocols.

Choice C rationale:

Second-degree heart block is characterized by intermittent failure of atrial electrical impulses to conduct to the ventricles. This results in occasional dropped beats and a varying heart rate. It is not consistent with the described ECG findings in the question.

Choice D rationale:

Sinus tachycardia is a regular, fast heart rate originating from the sinoatrial (SA) node. In sinus tachycardia, P waves are present, indicating that the electrical impulses originate in the SA node. The described ECG findings do not match the characteristics of sinus tachycardia.

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A nurse is providing preoperative teaching to a client about the administration of morphine via a PCA pump. Which of the following statements by the client indicates an understanding of the teaching?

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Explanation

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Explanation

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A nurse is providing preoperative teaching to a client about the administration of morphine via a PCA pump.
Which of the following statements by the client indicates an understanding of the teaching?