A nurse is reviewing a client’s cardiac rhythm strips and notes a constant P-R interval of 0.35 seconds.
Which of the following dysrhythmias is the client displaying
Atrial fibrillation.
Complete heart block
First-degree atrioventricular block
Premature atrial complexes
The Correct Answer is C
- . Answer and explanation.
The correct answer is choice C, first-degree atrioventricular block.
This is because the PR interval is longer than normal, which indicates a delay in the conduction of electrical impulses from the atria to the ventricles through the AV node. A normal PR interval is 0.12 to 0.2 seconds, or 3 to 5 small squares on the EKG strip.
In this case, the PR interval is 0.35 seconds, which is more than 5 small squares.
Choice A is wrong because atrial fibrillation is a type of arrhythmia where the atria beat irregularly and rapidly, producing chaotic and variable P waves and an irregular ventricular response.
There is no constant PR interval in atrial fibrillation.
Choice B is wrong because complete heart block is a type of arrhythmia where there is no conduction of electrical impulses from the atria to the ventricles, resulting in independent and dissociated atrial and ventricular rhythms.
There are no consistent P waves or PR intervals in complete heart block.
Choice D is wrong because premature atrial complexes are extra beats that originate from the atria and interrupt the normal sinus rhythm.
They produce abnormal P waves that are different from the sinus P waves, and may have a shorter or longer PR interval depending on the timing of the impulse.
However, they do not cause a constant prolongation of the PR interval.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is A. Beneficence. Beneficence is the ethical principle of doing good for the patient and promoting their well-being.
The nurse is demonstrating beneficence by sitting with the client to provide comfort and support during a difficult time.
Choice B is wrong because fidelity is the ethical principle of keeping promises to the patient and being loyal and faithful.
The nurse is not making or keeping any promises to the client in this scenario.
Choice C is wrong because autonomy is the ethical principle of respecting the patient’s right to make their own decisions and choices.
The nurse is not interfering with the client’s autonomy in this scenario.
Choice D is wrong because veracity is the ethical principle of telling the truth to the patient and being honest and trustworthy.
The nurse is not lying or withholding information from the client in this scenario.
Correct Answer is A
Explanation
Choice A reason:
"You might experience altered taste sensations" is the correct statement. When providing teaching to a client about to undergo external radiation therapy for cancer, the nurse should include information about potential side effects and what to expect during the treatment. One common side effect of radiation therapy, especially when the treatment is focused on or near the head and neck region, is altered taste sensations. Radiation can affect the taste buds and lead to changes in how foods taste.
Choice B reason:
"Use rubbing alcohol to remove the ink markings. “The statement is incorrect. The ink markings made on the client's skin are used as reference points for the radiation therapy treatment. It is essential not to remove these markings, as they are crucial for accurate positioning during each treatment session. The nurse should instruct the client not to tamper with the markings, and the radiation therapy team will remove them when they are no longer needed.
Choice C reason:
"Wear a binder over the radiation site." The statement is incorrect. Wearing a binder over the radiation site is not a standard practice during external radiation therapy. The client should be instructed to follow the specific guidelines provided by the radiation therapy team regarding clothing and positioning during treatments. The use of binders or other tight clothing over the treatment area may not be recommended, as it can cause discomfort or interfere with the delivery of radiation.
Choice D reason
"Wash your skin thoroughly with a washcloth after each treatment." Is incorrect statement. During radiation therapy, the skin in the treatment area can become sensitive. It is essential for the client to follow the specific instructions provided by the radiation therapy team regarding skin care. Generally, the client should avoid using harsh soaps or scrubbing the skin vigorously. Instead, they should gently cleanse the area with a mild soap or as directed by their healthcare providers.
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