The nurse is reviewing a patient's electrocardiogram (ECG) tracing. Which of the following are characteristics of normal sinus rhythm (NSR?
QRS interval less than or equal to 0.10 seconds
Heart rate 50-100 bpm
P waves are rounded and inverted, and follow each QRS complex
PR interval 0.34 to 0.43 seconds
The Correct Answer is B
A. The QRS interval may vary but is typically less than 0.12 seconds in normal sinus rhythm.
B. Normal sinus rhythm typically has a heart rate between 50 and 100 beats per minute.
C. In normal sinus rhythm, P waves are typically upright and precede each QRS complex.
D. The PR interval may vary but is typically between 0.12 and 0.20 seconds in normal sinus rhythm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A platelet count of 125,000/mm³ is lower than normal, and poses an increased risk of bleeding requiring immediate attention.
B. A hematocrit of 35% falls within the normal range for many individuals and does not indicate an urgent issue.
C. Weight loss may be a concern but is not typically considered a priority over other symptoms such as bone pain.
D. Bone pain in a client with leukemia is a common symptom of leukemia but does not require immediate attention compared to a low platelet count.
Correct Answer is C
Explanation
A. Adequate hydration is essential for preventing UTIs as it helps flush bacteria from the urinary tract.
B. Voiding after sexual intercourse can help flush out bacteria that may have entered the urinary tract during intercourse, reducing the risk of UTIs.
C. Wiping from back to front after urination can introduce bacteria from the anal area to the urethra, increasing the risk of UTIs. The correct technique is to wipe from front to back.
D. Bubble baths can introduce irritants and bacteria into the vaginal and perineal area, increasing the risk of UTIs. Avoiding bubble baths is a recommended prevention measure.
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