Table 3.

Mean (±SD) plasma glucose, lactate, total plasma protein concentration (TPP) and temperature (T°C) in mares undergoing intravenous anesthesia with xylazine, guaifenesin and ketamine, combined with a high dose of lidocaine (THL), low dose of lidocaine (TLL) or saline infusion (TS)

Parameter	Treat1	Time (minutes)
		T0	T5	T15	T30	T45	T60	T75
Glucose (mg/dL)	Mean of treatments	103 ± 10	139 ± 22*	178 ± 39*	213 ± 42*	240 ± 44*	255 ± 50*	266 ± 55*
Lactate (mmol/L)	Mean of treatments	0.80 ± 0.25	1.37 ± 0.39*	1.51 ± 0.39*	1.62 ± 0.40*	1.70 ± 0.41*	1.73 ± 0.45*	1.76 ± 0.50*
TPP (g/dL)	Mean of treatments	7.2 ± 0.6	6.9 ± 0.5*	6.8 ± 0.5*	6.7 ± 0.6*	6.7 ± 0.5*	6.7 ± 0.5*	6.8 ± 0.6*
T°C (°C)	Mean of treatments	37.9 ± 0.4	37.9 ± 0.4	37.9 ± 0.4	37.5 ± 0.4	37.3 ± 0.4*	37.2 ± 0.5*	37.0 ± 0.5*

1- Treat = Treatment; * - statistical difference from the time 0 or baseline value (row) (P < 0.05). For all means n = 18; T5 and T15–5 and 15 minutes after induction of anaesthesia with xylazine, guaifenesin and ketamine respectively (and maintenance with xylazine and ketamine); T30, T60, T75–15, 45 and 60 minutes after lidocaine or saline infusion (data from the three groups were grouped).