Question

A patient with no history of heart disease has a rhythm strip that shows an occasional distorted $\mathrm{P}$ wave followed by normal AV and ventricular conduction. What should the nurse question the patient about? a. The use of caffeine b. The use of sedatives c. Any acrobic training d. Holding of breath during exertion

   A patient with no history of heart disease has a rhythm strip that shows an occasional distorted $\mathrm{P}$ wave followed by normal AV and ventricular conduction. What should the nurse question the patient about?
a. The use of caffeine
b. The use of sedatives
c. Any acrobic training
d. Holding of breath during exertion

Study Guide for Medical-Surgical Nursing: Assessment and Management of Clinical Problems

Sharon L. Lewis RN… 9th Edition

Chapter 36, Problem 15

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The nurse is observing a rhythm strip that shows an occasional distorted P wave followed by normal AV and ventricular conduction. The nurse needs to question the patient about something that could potentially cause this abnormality. Now, let's analyze the answer Show more…

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A patient with no history of heart disease has a rhythm strip that shows an occasional distorted $\mathrm{P}$ wave followed by normal AV and ventricular conduction. What should the nurse question the patient about? a. The use of caffeine b. The use of sedatives c. Any acrobic training d. Holding of breath during exertion

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Key Concepts

Premature Atrial Contractions (PACs)

PACs are early heartbeats that originate in the atria, and they often create abnormal or distorted P waves on an electrocardiogram before normal electrical conduction resumes. They are common in individuals without underlying heart disease and can be benign, though they may be symptomatic or cause concern when detected on a rhythm strip.

Impact of Caffeine on Cardiac Rhythm

Caffeine is a known stimulant that can increase the automaticity of cardiac cells, potentially triggering premature beats such as PACs. Evaluating a patient's intake of caffeine is important because high levels can contribute to the occurrence of these ectopic beats, prompting health professionals to question their consumption habits.

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