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 B
Explanation
The correct answer is choice B: Wear a surgical mask when within 0.9 m (3 feet) of the client.
Choice A rationale:
Fresh flowers are generally discouraged in hospital settings for clients with compromised immune systems due to the risk of infection from soil or water, which can harbor harmful microorganisms. However, this is not specifically related to rubella, which is an airborne virus.
Choice B rationale:
Rubella is transmitted through airborne droplets when an infected person coughs or sneezes. Wearing a surgical mask when close to the client can help prevent the spread of the virus. This is especially important to protect individuals who are pregnant or may become pregnant, as rubella can cause serious birth defects.
Choice C rationale:
Negative-airflow pressure rooms are used for clients with airborne infections, such as tuberculosis. While rubella is also airborne, the current guidelines do not require a negative pressure room for its management.
Choice D rationale:
While limiting visitors can help control the spread of infection, it is not the primary action to take for a client with rubella. The focus should be on preventing the spread through droplet transmission, which is addressed by wearing a mask and practicing good hand hygiene.
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"A"},"C":{"answers":"A"},"D":{"answers":"B"},"E":{"answers":"B"}}
No explanation
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