A nurse is monitoring a client who is on telemetry. Which of the following findings on the ECG strip should the nurse recognize as normal sinus rhythm?
The T wave is in the inverted position.
The P wave falls before the QRS complex.
The QRS duration is 0.20 seconds.
The P-R interval measures 0.22 seconds.
The Correct Answer is B
A. The T wave in the inverted position can indicate ischemia or electrolyte imbalances but does not define normal sinus rhythm.
B. The P wave falling before the QRS complex is characteristic of normal sinus rhythm.
C. A QRS duration of 0.20 seconds is within the normal range and does not specifically define normal sinus rhythm.
D. The P-R interval typically ranges from 0.12 to 0.20 seconds, and a slightly prolonged interval here wouldn't necessarily exclude normal sinus rhythm.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The T wave in the inverted position can indicate ischemia or electrolyte imbalances but does not define normal sinus rhythm.
B. The P wave falling before the QRS complex is characteristic of normal sinus rhythm.
C. A QRS duration of 0.20 seconds is within the normal range and does not specifically define normal sinus rhythm.
D. The P-R interval typically ranges from 0.12 to 0.20 seconds, and a slightly prolonged interval here wouldn't necessarily exclude normal sinus rhythm.
Correct Answer is C
Explanation
A. Gentamicin administered over 1 hour is an appropriate method for this medication.
B. Injecting Demerol IM into the vastus lateralis is an acceptable site for adults.
C. Crushing bupropion XL (extended-release) tablets is contraindicated as it alters the drug's release mechanism, which can lead to a risk of overdose or ineffective treatment, requiring an incident report.
D. Using a 25-gauge ⅝ inch needle for heparin injection is an appropriate technique.
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