Table 1.

Biochemical parameters, clinical trends during intensive care unit stay

Postoperative ICU day	Time	pH (range: 7.35–7.45)	HCO3- (range: 22–26 mEq/L)	Lactate	Anion gap (range: 1–10)	Lowest and highest fingerstick glucose levels in 24 hours (mg/dL)	Urine ketones	Serum beta-hydroxybutyric acid (range: 0.02–0.27 mmol/L)	Intake/output (in 24 hours)	Human actrapid insulin (units/24 hours)
0	1504	7.37	23.5	1.47	14.1	107; 225	—	—	3090/3620	—
	2200	7.33	17.6	1.67	17.6
	0300	7.26	15.6	1.63	19.3
1	0600	7.33	16.5	2.2	18.8	145; 249	Large	0.81	3870/4340	48
	1430	7.33	17.6	2.24	16.9
	2300	7.42	23.3	1.23	5.8
2	0600	7.44	21.6	1.39	1.6	152; 222	Moderate	—	2960/2750	40
	1800	7.40	23.7	1.24	9.4
3	0800	7.45	22.3	1.2	9.5	167; 242	Large	—	3000/2730	27
4	0800	7.37	22.2	1.26	14.1	120; 280	Moderate	—	2950/2700	27
5	0600	7.39	22	2.55		145; 202	Large	—	600/450	—