A nurse is monitoring a client's heart rhythm following the insertion of a permanent pacemaker.
Which of the following images should the nurse expect?
A regular sinus rhythm.
A chaotic, irregular rhythm.
Absence of any electrical activity.
A series of spikes followed by a QRS complex.
The Correct Answer is D
A pacemaker sends electrical signals to the heart to regulate the heartbeat.
On an electrocardiogram (ECG), these signals appear as small spikes followed by a QRS complex, which represents the contraction of the ventricles.
Choice A, A regular sinus rhythm, is not the correct answer because a regular sinus rhythm is a normal heart rhythm that originates from the sinoatrial (SA) node and does not involve a pacemaker.
Choice B, A chaotic, irregular rhythm, is not the correct answer because a pacemaker is designed to regulate the heartbeat and prevent chaotic or irregular rhythms.
Choice C, the Absence of any electrical activity, is not the correct answer because a pacemaker sends electrical signals to the heart to regulate its activity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Oral contraceptive use is a risk factor for the development of DVTs.
Choice B is incorrect because cirrhosis is not a known risk factor for DVTs.
Choice C is incorrect because hypertension is not a known risk factor for DVTs.
Choice D is incorrect because NSAID use is not a known risk factor for DVTs.
Correct Answer is D
Explanation
Monitor the client for adequate urine output.
When administering potassium chloride via IV infusion to a client who has severe hypokalemia, it is important for the nurse to monitor the client’s urine output to ensure that their kidneys are functioning properly and that they are able to excrete excess potassium.
Choice A is incorrect because the infusion site should be checked more frequently than every 4 hours.
Choice B is incorrect because the maximum recommended rate of infusion for potassium chloride is 10 mEq/hr.
Choice C is incorrect because Chvostek’s sign is used to assess for hypocalcemia, not hypokalemia.
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