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. Incorrect. A Glasgow coma scale (GCS) rating of 15 indicates that the client is able to obey commands.
B. Correct. A GCS rating of 15 indicates that the client is fully conscious and oriented to person, place, and time.
C. Incorrect. Opening eyes to sound is a response associated with the eye-opening component of the GCS score, but this response does not provide information about the client's orientation.
D. Incorrect. Withdrawing from pain is a response associated with the motor component of the GCS score, but this response does not provide information about the client's orientation.
Correct Answer is D
Explanation
A. Incorrect. Unused medication replacement might not be necessary every 6 months and depends on the expiration date of the medication container.
B. Incorrect. Dabigatran capsules should not be crushed or opened, as it can affect the medication's efficacy and increase the risk of bleeding.
C. Incorrect. Storing the medication in the refrigerator is not necessary for dabigatran.
D. Correct. Keeping the medication in the original container helps protect it from moisture and ensures proper identification and labeling.
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