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.
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Related Questions
Correct Answer is D
Explanation
A. This response focuses solely on the adequacy of the medication dosage and does not address the patient's emotional distress.
B. This response dismisses the patient's request and does not address the underlying feelings of suffering.
C. This response does not provide support or explore the patient's feelings further and may come across as judgmental.
D. This response acknowledges the patient's feelings and opens the door for further discussion and exploration of their emotional distress.
Correct Answer is A
Explanation
A. Atrial flutter is characterized by a regular rhythm with rapid atrial contractions (flutter waves) that have a sawtooth appearance on the ECG tracing.
B. Ventricular tachycardia typically presents with a wide QRS complex and is often associated with hemodynamic instability.
C. Atrial fibrillation is characterized by irregularly irregular rhythm with no distinct P waves and irregular ventricular response.
D. Sinus tachycardia is characterized by a regular rhythm with a heart rate greater than 100 beats per minute originating from the sinus node.
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