Table 1 Recommendations for change of calcium flow based on systemic ionized calcium (iCa) concentration in Ci-Ca® CVVHD and percentage of study samples in each category depending on the instrument used for iCa measurement
Systemic iCa (mmol/L) | Change in calcium dose (calcium/filtrate) | GEM4000 (%) | pHOx (%) | Prime (%) | ABL90 (%) | Cobas b 123 (%) | RAPID point 500 (%) |
|---|---|---|---|---|---|---|---|
>1.45 | Decreased by 0.6 mmol/La | 0 | 0 | 0 | 0 | 0 | 0 |
1.31–1.45 | Decreased by 0.4 mmol/L | 2 | 1 | 0 | 1 | 2 | 2 |
1.21–1.30 | Decreased by 0.2 mmol/L | 12 | 21 | 11 | 21 | 19 | 3 |
1.12–1.20 | No change | 38 | 41 | 49 | 41 | 51 | 22 |
1.05–1.11 | Increased by 0.2 mmol/L | 27 | 21 | 31 | 21 | 17 | 31 |
0.95–1.11 | Increased by 0.4 mmol/L | 16 | 11 | 6 | 11 | 10 | 25 |
<0.95 | Increased by 0.6 mmol/La | 6 | 4 | 3 | 4 | 2 | 17 |