Table 4.
Comparison of blood and urine parameters before and after bowel preparation with polyethylene glycol solution plus ascorbic acid in all patients.
| Parameter | Normal range | All patients (n = 51) | ||
|---|---|---|---|---|
| Before preparation | After preparation | P | ||
| Blood samples | ||||
| White blood cell count (/μL) | 3,300-8,600 | 5,800 (2,900-16,100) | 6,800 (2,900-25,600) | 0.035 |
| Hemoglobin (g/dL) | 13.7-16.8 (male) | 11.0 ± 1.5 | 11.4 ± 1.5 | 0.001 |
| 11.6-14.8 (female) | ||||
| Platelet count (×104/mL) | 15.8-34.8 | 20.6 (11.1-49.7) | 21.2 (11.7-45.7) | 0.015 |
| Na (mEq/L) | 138-146 | 140 ± 3.7 | 141 ± 3.5 | 0.060 |
| K (mEq/L) | 3.6-4.9 | 4.5 ± 0.7 | 4.5 ± 0.7 | 0.088 |
| Cl (mEq/L) | 99-109 | 103 ± 4.8 | 104 ± 4.4 | 0.076 |
| Ca (mg/dL) | 8.7-10.3 | 9.2 ± 0.8 | 9.3 ± 0.7 | 0.217 |
| P (mg/dL) | 2.5-4.7 | 4.1 (2.7-7.5) | 4.4 (2.2-9.2) | 0.068 |
| Mg (mg/dL) | 1.8-2.4 | 2.0 (1.1-3.1) | 2.0 (1.1-3.4) | 0.341 |
| BUN (mg/dL) | 8.0-22.0 | 35.8 (8.3-95.4) | 30.0 (7.5-96.1) | 0.431 |
| Cr (mg/dL) | 0.6-1.1 | 4.68 ± 3.06 | 4.89 ± 3.23 | 0.075 |
| eGFR (mL/min/1.73m2) | ≥60.0 | 10.1 (3.8-76.4) | 9.5 (3.5-84.2) | 0.376 |
| TP (g/dL) | 6.7-8.3 | 6.8 (3.9-8.1) | 7.3 (4.7-8.3) | <0.001 |
| Alb (g/dL) | 4.0-5.0 | 4.0 (1.4-5.0) | 4.2 (1.8-5.3) | <0.001 |
| AST (IU/L) | 13-33 | 16 (3-50) | 19 (4-226) | <0.001 |
| ALT (IU/L) | 6-30 | 11 (2-64) | 13 (51-153) | <0.001 |
| LD (IU/L) | 119-229 | 205 (151-338) | 222 (132-439) | <0.001 |
| TBil (mg/dL) | 0.3-1.2 | 0.5 (0.2-1.2) | 0.5 (0.2-1.3) | 0.001 |
| UA (mg/dL) | 3.6-7.0 | 5.8 ± 1.5 | 6.2 ± 1.5 | 0.002 |
| HCO3− (mmol/L) | 20.0-30.0 | 25.6 ± 3.4 | 23.3 ± 3.3 | <0.001 |
| Osmolarity (mOsm/kgH2O) | 275-290 | 294 (267-317) | 295 (265-313) | 0.906 |
| Urine samples | ||||
| Na (mEq/L) | ND | 78 (16-147) | 69 (6-190) | 0.882 |
| K (mEq/L) | ND | 22 (4-71) | 36 (4-91) | <0.001 |
| Cl (mEq/L) | ND | 71 (10-151) | 52 (10-138) | 0.030 |
| Osmolarity (mOsm/kgH2O) | 50-1300 | 307 (126-691) | 346 (114-752) | 0.007 |
Median (range); mean ± standard deviation. ND: not determined; WBC: white blood cell; Na: sodium; K: potassium; Ca: calcium; P: phosphate; Mg: magnesium; BUN: blood urea nitrogen; Cr: creatinine; eGFR: estimated glomerular filtration rate; TP: total protein; Alb: albumin; AST: aspartate aminotransferase; ALT: alanine aminotransferase; LD: lactate dehydrogenase; TBil: total bilirubin; DBil: direct bilirubin; CRP: C-reactive protein; UA: uric acid; HCO3−: bicarbonate.