A Randomized Controlled Trial Evaluating a Low-Volume PEG Solution Plus Ascorbic Acid versus Standard PEG Solution in Bowel Preparation for Colonoscopy

Table 4

Laboratory results comparing baseline to 3 hours and 7 hours after taking the gut lavage solution.

		PEG-ELS			value		PEG-ASC			value
		I	II	III	I vs II	I vs III	I	II	III	I vs II	I vs III
Total protein (g/dL)	6.7–8.3	6.9	7.0	7.0	0.086	0.223	6.9	7.2	7.1	<0.001	<0.001
Albumin (g/dL)	4.0–5.0	4.2	4.3	4.3	0.015	0.004	4.2	4.4	4.4	<0.001	<0.001
Glucose (mg/dL)	70–109	100.0	92.2	92.0	0.002	<0.001	93.1	89.5	90.6	0.076	0.320
BUN (mg/dL)	8–22	13.5	14.7	12.8	0.513	<0.001	13.3	13.3	13.5	0.917	0.441
Creatinine (mg/dL)	0.60–1.10	0.74	0.72	0.73	0.077	0.451	0.74	0.76	0.74	0.003	0.344
ALT (U/L)	6–30	23.4	26.0	25.4	<0.001	<0.001	23.4	26.7	26.9	<0.001	<0.001
Sodium (mmol/L)	138–146	140.4	139.7	139.5	0.015	0.006	140.5	139.9	139.1	0.033	<0.001
Potassium (mmol/L)	3.6–4.9	4.2	4.1	3.9	0.264	<0.001	4.2	4.3	4.1	0.009	0.004
Chloride (mmol/L)	99–109	105.1	103.5	102.9	<0.001	<0.001	105.1	105.9	104.9	0.003	0.422
Calcium (mg/dL)	8.7–10.3	9.1	9.0	9.0	0.148	0.189	9.1	9.2	9.2	0.082	0.665
Phosphorus (mg/dL)	2.5–4.7	3.5	3.5	3.3	0.086	<0.001	3.5	3.8	3.4	<0.001	0.752
pH	7.32–7.42	7.38	7.39	7.39	0.001	0.005	7.38	7.35	7.35	<0.001	<0.001
Sodium bicarbonate	24.0–28.0	27.5	27.4	26.8	0.802	0.062	28.1	24.2	23.8	<0.001	<0.001
Base excess (mmol/L)	−2.5–2.5	1.6	1.8	1.4	0.331	0.415	2.1	−1.7	−2.0	<0.001	<0.001
Osmolality (mOsm/kg)	285–295	291.2	289.8	288.6	0.059	<0.001	290.9	289.6	288.1	0.011	<0.001
Magnesium (mg/dL)	1.8–2.4	2.1	2.0	2.0	<0.001	<0.001	2.0	2.1	2.0	0.141	<0.001
White blood cells (/μL)	3400–8400	5622.8	5853.6	6732.8	0.129	<0.001	5753.2	5807.4	7473.4	0.636	<0.001
Red blood cells (×10^4/μL)	420–560	431.2	424.5	430.3	0.306	0.729	446.3	455.7	454.2	0.001	0.002
Hemoglobin (g/dL)	M: 13.5–18.0	13.6	13.5	13.5	0.363	0.171	13.9	14.0	14.6	0.912	0.261
	F: 11.3–14.9
Hematocrit (%)	M: 39.9–50.3	40.9	40.7	40.6	0.500	0.304	41.6	42.7	42.5	0.001	0.005
	F: 34.8–44.0
Neutrophils (%)		58.3	60.1	59.0	0.039	0.522	59.0	62.8	63.4	0.001	<0.001
Lymphocytes (%)		30.7	29.7	31.6	0.142	0.236	30.7	27.9	28.5	0.005	0.032
Eosinophils (%)		2.7	2.1	1.8	<0.001	<0.001	2.8	2.1	1.7	<0.001	<0.001

I, before preparation; II, 3 hrs after beginning of preparation; III, 7 hrs after beginning of preparation; value by paired -test two-side. BUN, blood urea nitrogen; ALT, alanine aminotransferase.