Table 3. Range, mean, median and standard deviation according to assays (POC and Lab).
| Range (min–max) | Mean | Median | SD | |||||
|---|---|---|---|---|---|---|---|---|
| POC | Lab | POC | Lab | POC | Lab | POC | Lab | |
| Na+, mmol/L | 119.4–150.2 | 121–152 | 135.4 | 136.7 | 134.7 | 136 | 5 | 4.7 |
| K+, mmol/L | 2.8–5.8 | 2.9–5.9 | 3.9 | 4.1 | 3.8 | 4.1 | 0.6 | 0.6 |
| Cl-, mmol/L | 86–116 | 86–115 | 102.1 | 101.2 | 102 | 101 | 5.6 | 5.6 |
| HCO3-, mmol/L | 13.5–43.1 | 14–43 | 25.2 | 26 | 24.2 | 25 | 5.3 | 5.4 |
| Glu, mg/dL | 50–397 | 32–373 | 135.4 | 124.8 | 129 | 119 | 41.5 | 41 |
| Hb, g/dL | 6.1–15.5 | 5.6–14.7 | 10.3 | 9.5 | 10.2 | 9.4 | 1.6 | 1.5 |
| Hct, % | 18–46 | 16.9–45.2 | 30.2 | 29.1 | 30 | 28.8 | 4.7 | 4.8 |
POC is Point-of-Care Siemens RAPIDPoint 500 blood gas system, Lab is central Laboratory analyzers, SD is standard deviation, Na+ is sodium (n = 314), K+ is potassium (n = 314), Cl- is chloride (n = 313), HCO3- is bicarbonate (n = 313), Glu is glucose (n = 306), Hb is hemoglobin (n = 312) and Hct is hematocrit (n = 312).