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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Vagal stimulation of hea causes? (irrelevant to pharmacology)
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The correct answer is  Increased RR interval is seen in ECG on vagal stimulation. Normal values for waves and intervals are as follows: RR interval: 0.6-1.2 seconds. P wave: 80 milliseconds. ... QT interval: 420 milliseconds or less if the hea rate is 60 beats per minute (bpm) Ref: KD Tripathi 8th ed.