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
This statement indicates an understanding of the teaching because headache is a common symptom of anemia.
Choice B is incorrect because bradycardia (slow heart rate) is not a common symptom of anemia.
Instead, anemia can cause irregular heartbeats or a fast heartbeat.
Choice Dis incorrect because flushed skin color is not a common symptom of anemia.
Instead, anemia can cause pale or yellowish skin 1.
Choice Cis incorrect because heat intolerance is not a common symptom of anemia.
Correct Answer is A
Explanation
The correct answer is A. Back pain.
Choice A reason: Back pain during a blood transfusion is a classic symptom of a hemolytic transfusion reaction. This type of reaction occurs when the immune system attacks the transfused red blood cells, leading to their destruction. Back pain is considered a more specific and early sign of this reaction.
Choice B reason: Bradycardia, which is a slower than normal heart rate, is not typically associated with hemolytic transfusion reactions. The normal range for an adult’s resting heart rate is between 60 to 100 beats per minute. Bradycardia is usually considered when the heart rate is lower than 60 beats per minute in a resting adult. It can be a sign of a well-trained athlete or can occur as a result of certain medications or heart conditions, but it is not a recognized symptom of a hemolytic transfusion reaction.
Choice C reason: Hypertension, or high blood pressure, is also not a common symptom of a hemolytic transfusion reaction. Normal blood pressure ranges from 90/60 mmHg to 120/80 mmHg. Hypertension is typically defined as having a blood pressure higher than 130/80 mmHg. While hypertension can be a serious condition, it is not indicative of a hemolytic transfusion reaction.
Choice D reason: Chills are a symptom that can be associated with a hemolytic transfusion reaction, often occurring alongside fever and back pain. However, while chills can indicate a reaction, back pain is a more specific symptom that can help differentiate a hemolytic reaction from other types of transfusion reactions.
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