Table 3. Calculation algorithm, truncation limits and control limits of MA procedures selected as optimal for each of the 4 analytes.
| Calculation algorithm | Truncation limit | Control limit | |||
|---|---|---|---|---|---|
| lower | upper | lower | upper | ||
| Creatinine | EWMA Weighting factor: 0.1 |
/ | 150 | 62 | 90 |
| Potassium | EWMA Weighting factor: 0.1 |
/ | 6.0 | 3.9 | 4.8 |
| Sodium | Simple MA Batch size: 25 |
/ | / | 137 | 142 |
| Albumin | Simple MA Batch size: 10 |
/ | / | 40 | 46 |
| MA - moving average. EWMA - exponentially weighted moving average. The values are expressed in μmol/L for creatinine, in mmol/L for potassium and sodium and in g/L for albumin. | |||||