What would lead the nurse to suspect that a 5-year-old child is experiencing supraventricular tachycardia?
A) Heart rate 160 beats per minute
B) Flattened P waves
C) Normal QRS complex
D) History of fever
Ans: B
Supraventricular tachycardia is manifested by flattened P waves, a heart rate greater than 180 beats per minute, a narrow QRS complex, and usually no significant history. A heart rate of 160 beats per minute, normal QRS complex, and history of fever, fluid loss, hypoxia, pain, or fear would suggest sinus tachycardia.
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