Table 2.

Different variables of the patient (on admission and at 8.00 a.m. each day): intake and output volume, blood urea nitrogen (normal value ranges: 9–20 mg/dL), creatinine (normal value ranges: 0.7–1.4 mg/dL), peripheral venous blood gases including partial pressure of carbon dioxide (normal value ranges: 40–52 mmHg), venous blood pH (normal value ranges: 7.31–7.41), bicarbonate (normal value ranges: 22–27 mEq/L), and saturation of peripheral oxygen (normal present ranges: 90–100%).

Time of hospitalization (day)	Volume intake (mL)	Volume output (mL)	Blood urea nitrogen (mg/dL)	Creatinine (mg/dL)	PCO2  (mmHg)	PH	HCO3  (mEq L)	SpO2%
On admission	—	—	21	1.6	18	7.54	15.1	93
1	2250	700	24	1.3	18	7.54	15	84
2	3950	250	37	2.3	26	7.24	15.2	85
3	3100	1000	45	1.4	24	7.44	15.9	89
4	4850	1200	32	1.2	27	7.46	18.6	98
5	3650	2300	27	0.8	29	7.49	21.4	94
6	3400	2100	18	0.6	29	7.49	38	96
7	3850	5400	12	0.6	37	7.50	28.3	99
8	3850	8150	14	0.6	51	7.45	34.6	100
9	4300	3700	14	0.8	41	7.50	31.2	96
10	3900	5800		—	42	7.40	31.3	95
11	3100	2950	8	0.8	42	7.49	31.3	97
12	3100	2900			—	—

mg/dL: milligram per deciliter; mEq/L: milliequivalents per liter; mmHg: millimeters of mercury; mL: milliliter; PCO₂: partial pressure of carbon dioxide; HCO₃: bicarbonate; SpO₂: saturation of peripheral oxygen.