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?
Premature atrial complexes
Complete heart block
Atrial fibrillation
First-degree atrioventricular block
The Correct Answer is D
A. Incorrect. Premature atrial complexes do not typically affect the P-R interval. They are characterized by an early P-wave followed by a QRS complex.
B. Incorrect. Complete heart block is characterized by a dissociation between the P-waves and QRS complexes, resulting in no relationship between atrial and ventricular activity.
C. Incorrect. Atrial fibrillation is characterized by chaotic and irregular atrial activity without distinct P-waves, making the P-R interval irrelevant.
D. Correct. In first-degree atrioventricular block, the P-R interval is prolonged beyond the normal range of 0.12-0.20 seconds. A constant P-R interval of 0.35 seconds indicates a first- degree atrioventricular block.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While staff training is important, it may not address the immediate concern of identifying the cause of the infections.
B. Correct. Identifying the possible factors contributing to the infections is the first step in addressing the issue and preventing further infections.
C. Meeting with providers can be beneficial, but identifying the cause should come first before discussing measures.
D. Revising the policy for catheter care can be considered once the contributing factors are identified.
Correct Answer is A
Explanation
A. Correct. The child should be instructed to blow into the peak expiratory flow meter as hard and quickly as possible to achieve maximal effort. This provides an accurate measure of peak expiratory flow, which is important in assessing asthma control.
B. Incorrect. The child's body position during testing does not typically affect the accuracy of peak expiratory flow measurements.
C. Incorrect. While recording the average of multiple readings over time is important, the child needs to understand how to perform a single accurate reading first.
D. Incorrect. The tongue is not usually involved in the use of a peak expiratory flow meter.
The child should place their lips tightly around the mouthpiece to create a seal while blowing forcefully into the device.
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.