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 **b. A room containing personal belongings.**
Choice A rationale:
A room without a window would not be a therapeutic environment for a cognitively impaired client. Lack of natural light and connection to the outside world can be disorienting and distressing for these patients.
Choice B rationale:
A room containing personal belongings is the most therapeutic environment for a cognitively impaired client. Familiar objects and surroundings can help provide a sense of comfort, security, and orientation. This can reduce agitation and confusion, which are common issues for cognitively impaired patients.
Choice C rationale:
A room adjacent to the nursing station may not be the most therapeutic environment. While proximity to staff can be beneficial, the increased noise and activity level near the nursing station could be overstimulating and disruptive for a cognitively impaired client.
Choice D rationale:
A room with dim lighting is not ideal for a cognitively impaired client. Adequate lighting is important to help these patients maintain orientation and avoid falls or other safety issues. Dim lighting can contribute to confusion and disorientation.
Correct Answer is C
Explanation
Choice A rationale:
Using a 12-point font when printing written materials is helpful for readability, especially for individuals with visual impairments. However, this action alone does not necessarily promote meaningful learning. The content and presentation style are equally important.
Choice B rationale:
Presenting information using abstract concepts can be confusing, especially for older adults. Using concrete examples and simple language facilitates better understanding. Abstract concepts are more challenging to grasp, especially for individuals who might be experiencing cognitive decline.
Choice C rationale:
Connecting new information with the client's past experiences enhances learning and retention. Relating new knowledge to familiar situations or memories helps create cognitive associations, making it easier for the client to understand and remember the information. This technique is particularly effective in promoting learning among older adults.
Choice D rationale:
Speaking loudly when addressing the client is unnecessary and can be perceived as rude or patronizing. Clear and audible speech is essential, but shouting or raising the volume excessively is not respectful and does not enhance the learning experience.
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