A nurse is caring for a client who is alert and oriented and is receiving continuous ECG monitoring.
The cardiac rhythm strip shows a wavy baseline, no distinguishable P waves, and an increased heart rate.
The nurse should identify the cardiac rhythm as which of the following?
Atrial fibrillation.
Ventricular asystole.
Second-degree heart block.
Sinus tachycardia.
The Correct Answer is A
Choice A rationale:
The described cardiac rhythm with a wavy baseline, no distinguishable P waves, and an increased heart rate is consistent with atrial fibrillation. In atrial fibrillation, the atria quiver instead of contracting effectively, leading to an irregular and often rapid heart rate. This rhythm is characterized by the absence of distinct P waves on the ECG.
Choice B rationale:
Ventricular asystole is a flatline on the ECG, indicating the absence of electrical activity in the heart. It is a life-threatening arrhythmia and requires immediate intervention with cardiopulmonary resuscitation (CPR) and advanced cardiac life support (ACLS) protocols.
Choice C rationale:
Second-degree heart block is characterized by intermittent failure of atrial electrical impulses to conduct to the ventricles. This results in occasional dropped beats and a varying heart rate. It is not consistent with the described ECG findings in the question.
Choice D rationale:
Sinus tachycardia is a regular, fast heart rate originating from the sinoatrial (SA) node. In sinus tachycardia, P waves are present, indicating that the electrical impulses originate in the SA node. The described ECG findings do not match the characteristics of sinus tachycardia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer isChoice C.
Choice A rationale:
Encouraging the client to drink low-protein supplements is not the best action. Protein is essential for tissue repair and healing, especially when the body is under stress, such as during radiation therapy. Therefore, it would be more beneficial to encourage high-protein foods and supplements.
Choice B rationale:
Serving the client’s largest meal in the evening is not the most effective strategy. Radiation therapy can cause nausea and vomiting, which are often worse later in the day. Therefore, it might be more beneficial to serve a larger meal earlier in the day when the client is more likely to tolerate it.
Choice C rationale:
Providing the client with cold foods rather than hot foods is the correct action. Hot foods can often exacerbate feelings of nausea, which are common side effects of radiation therapy.Cold foods are generally better tolerated.
Choice D rationale:
Telling the client to drink two glasses of water with meals is not the best advice. While hydration is important, drinking large amounts of fluid with meals can contribute to early satiety, which can further decrease the client’s food intake. It might be more beneficial to encourage the client to drink fluids between meals.
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"B"}}
No explanation
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