A nurse is reinforcing teaching with a newly licensed nurse about reading a client's ECG tracing. The nurse should include in the teaching that the P wave represents which of the following cardiac electrical activities?

Late ventricular repolarization

Ventricular depolarization

Early ventricular repolarization

Atrial depolarization

Answer and Explanation

The Correct Answer is D

A. Late ventricular repolarization: Late ventricular repolarization is represented by the T wave on an ECG, not the P wave.

B. Ventricular depolarization: Ventricular depolarization is represented by the QRS complex, not the P wave.

C. Early ventricular repolarization: Early ventricular repolarization is not related to the P wave. It is part of the T wave, which represents repolarization of the ventricles.

D. Atrial depolarization: The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria.

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Correct Answer is ["A","B","C","E"]

Explanation

A. Use alcohol pad to wipe the skin before placing the electrodes: Cleaning the skin with alcohol before applying the electrodes helps remove oils and dirt, ensuring better contact and more accurate readings.

B. "No movement during the test, you should try to lay still." The client should remain still during the ECG to avoid muscle movements or artifacts that can interfere with the ECG tracing.

C. Inspect electrodes while preparing for test: Inspecting electrodes ensures that they are functioning correctly and are not damaged, which can affect the accuracy of the ECG.

D. Administer an analgesic prior to the procedure: An analgesic is not necessary for an ECG as the procedure is non-invasive and painless.

E. Instruct the client to breathe normally: Instructing the client to breathe normally helps avoid unnecessary movement of the chest, which could distort the ECG tracing.

F. Keep the client NPO after midnight: There is no need to keep the client NPO for an ECG, as it is not a procedure requiring sedation or fasting.

A. Orthopnea B. Dyspnea C. Peripheral edema D. Frothy sputum

Correct Answer is C

Explanation

A. Orthopnea: Orthopnea is more commonly associated with left-sided heart failure.

B. Dyspnea: Dyspnea is more indicative of left-sided heart failure, where fluid backs up into the lungs, causing difficulty breathing.

C. Peripheral edema: Peripheral edema is a classic symptom of right-sided heart failure due to the backup of blood in the systemic circulation, leading to fluid retention in the lower extremities.

D. Frothy sputum: Frothy sputum is typically associated with left-sided heart failure due to pulmonary congestion and edema.

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A nurse is reinforcing teaching with a newly licensed nurse about reading a client's ECG tracing. The nurse should include in the teaching that the P wave represents which of the following cardiac electrical activities?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is ["A","B","C","E"]

Explanation

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Correct Answer is C

Explanation

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