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 ["22.5"]

Explanation

Ordered dose: 30 mEq

Available concentration: 20 mEq/15 mL

Calculation:

To find the volume needed: (30 mEq ÷ 20 mEq) ×15 mL = 22.5 mL

Therefore, the nurse should administer 22.5 mL of potassium chloride.

A. Crackles B. Productive cough C. Hepatomegaly D. Dizziness

Correct Answer is C

Explanation

A. Crackles: Crackles in the lungs are a sign of left-sided heart failure, as fluid backs up into the pulmonary system.

B. Productive cough: A productive cough is also more commonly associated with left-sided heart failure, as it can result from fluid accumulation in the lungs.

C. Hepatomegaly: Hepatomegaly is a sign of right-sided heart failure, as blood backs up into the systemic circulation, leading to congestion in the liver.

D. Dizziness: Dizziness may occur in left-sided heart failure due to decreased cardiac output, but it is not a typical finding in right-sided heart failure.

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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

A nurse is preparing to administer potassium chloride 30 mEq PO daily. The amount available is potassium chloride 20 mEq/15mL. How many mL should the nurse administer? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["22.5"]

Explanation

A nurse us collecting data from a client who has right sided heart faiulure. Which of the following should the nurse expect?

Correct Answer is C

Explanation

A nurse is collecting data from a client who has right-sided heart failure. Which of the following findings should the nurse expect?

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A nurse is preparing to administer digoxin to a client who has heart failure. For which of the following findings should the nurse withhold the medication and report to the provider?

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