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 D
Explanation
The correct answer is D. Remind the client to use the incentive spirometer.
Choice A rationale:
Observing the position of the suspended weight is beyond the scope of practice for assistive personnel (AP). This task requires assessment skills to ensure proper alignment and functioning of the traction system, which is the responsibility of the nurse.
Choice B rationale:
Checking the client’s pedal pulse on the right leg involves assessment and clinical judgment to evaluate perfusion and detect potential complications such as impaired circulation. This is not a task that can be delegated to AP.
Choice C rationale:
Asking the client to describe her pain requires assessment and interpretation of subjective data, which falls under the nurse's scope of practice. Pain assessment is a critical nursing function.
Choice D rationale:
Reminding the client to use the incentive spirometer is a non-assessment task that involves reinforcing previously taught instructions. This is appropriate to delegate to assistive personnel, as it does not require clinical judgment.
Correct Answer is B
Explanation
The correct answer is: B
Choice A reason: A social worker may assist clients in many ways, including finding legal representation. However, this statement does not address the client’s concern about the cost of legal representation for advance directives. It’s important to note that while social workers can provide support, they do not eliminate the need for legal representation if the client chooses to seek it.
Choice B reason: This is the correct statement because advance directives do not require legal representation to be valid. They become legally binding when signed in front of the required witnesses. This option directly addresses the client’s concern about affording legal representation by informing them that it is not necessary for the creation of advance directives.
Choice C reason: While medical care can be initiated without advance directives, this statement does not address the client’s concern about the cost of creating advance directives. It also implies that medical care is contingent on the completion of legal documents, which is not accurate.
Choice D reason: Verbal agreements are not as legally binding as written advance directives and could lead to misunderstandings or disputes later on. It is important for the client to have a clear and documented advance directive, which does not necessarily require legal review to be valid.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.