TABLE 6-10.

Electrocardiographic Data for Normal Ferrets^*

Parameter				Mean	Range
Rate rhythm				224 ± 51	150–340
	Normal sinus rhythm
	Sinus arrhythmia
Measurements
	P wave
		Width		0.03 ± 0.009	0.015–0.04 s
		Height		0.106 ± 0.03	0.05–0.20 mV
	P–R interval
		Width		0.05 ± 0.01	0.04–0.08 s
	QRS complex
		Q wave		Usually none
		Rwave
			Width	0.049 ± 0.008	0.04–0.06 s
			Height	1.59 ± 0.63	0.6–3.15 mV
		S wave
			Height	0.166 ± 0.101	0.1–0.25 mV
	S–T segment
		Width		0.030 ± 0.016	0.01–0.06 s
	Q–T interval
		Width		0.13 ± 0.027	0.10–0.18 s
	T wave
		Width		0.06 ± 0.01 0.	03–0.1 s
		Height		0.24 ± 0.12	0.10–0.45 mV
Mean electrical axis (frontal plane)					+65–100 degrees

^*Ferrets in right lateral recumbency; sedation with ketamine and xylazine.