Table 2.
Reference intervals, medians, ranges and upper and lower quartiles for the measured acid–base values from the 1024 profiles in the present study
| Parameter | Ref. interval | Minimum | 25% | Median | 75% | Maximum |
|---|---|---|---|---|---|---|
| pH | 7.32–7.38 | 6.808 | 7.306 | 7.362 | 7.404 | 7.560 |
| pCO2 (mmHg) | 38–46 | 11.6 | 30.1 | 35.6 | 41.5 | 73.0 |
| Na+ (mmol/L) | 145–151 | 113.2 | 143.6 | 147.1 | 150.5 | 182.9 |
| K+ (mmol/L) | 3.9–5.1 | 0.97 | 3.76 | 4.10 | 4.46 | 8.9 |
| Ca2+ (mmol/L) | 1.18–1.37 | 0.44 | 1.21 | 1.27 | 1.32 | 2.03 |
| Cl− (mmol/L) | 110–119 | 71 | 109 | 113 | 116 | 139 |
| HCO3 − (mmol/L) | 20–25 | 3 | 16.6 | 19.4 | 22.2 | 44.1 |
| BE (mmol/L) | 0 to −4 | −28.3 | −9.1 | −5.9 | −3.0 | 21.1 |
| Lactate (mmol/L) | <2.0 | 0 | 1.3 | 2.1 | 3.3 | 17 |
| Albumin (g/dL) | 3.1–4.2 | 0.8 | 2.4 | 2.9 | 3.5 | 4.8 |
| Globulin (g/dL) | 1.9–3.6 | 0.5 | 2.0 | 2.5 | 3.0 | 10.4 |
| Phosphate (mg/dL) | 2.9–5.2 | 0.8 | 3.4 | 4.2 | 5.4 | 30.3 |
| BUN (mg/dL) | 10–32 | 2 | 11 | 16 | 27 | 350 |
BE, base excess; BUN, blood urea nitrogen; HCO3 −, bicarbonate.