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
The aseptic technique is important to prevent infection when changing the dressing of a central venous access device.
Choice B is not correct because povidone-iodine is not always the recommended cleansing agent for central venous access devices.
Choice C is not correct because a 10-mL syringe may generate too much pressure and damage the catheter.
Choice D is not correct because the dressing does not always need to be changed every 24 hours; the frequency of dressing changes depends on the type of dressing and the condition of the site.
Correct Answer is C
Explanation
“Weight loss of.8 kg (4 Ib) in the past 24 hr.” Furosemide is a diuretic that decreases the pressure caused by excess fluid in the heart and lungs.
A weight loss of.8 kg (4 Ib) in the past 24 hr indicates that excess fluid is being removed from the body, which is a sign that the medication is effective.
Choice A is incorrect because adventitious breath sounds are a symptom of pulmonary edema, not an indication that the medication is effective.
Choice B is incorrect because furosemide has direct vasodilatory outcomes 2, which would decrease blood pressure, not elevate it.
Choice D is incorrect because there is no information found to support this statement.
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