Table.
Justified reporting unit magnitude (p=0.05) based on performance in RCPA General Serum Chemistry QAP Cycle 68, together with unit size taken from various authorities.
| Analyte | Units | Justifiable Unit magnitude from 50% QAP SD | RCPA Unit Size | Tietz Unit Size | QAP Unit Size | RI * |
|---|---|---|---|---|---|---|
| Ca | mmol/L | 0.07 | 0.01 | 0.01 | 0.01 | 0.05 |
| Creatinine | μmol/L | 10.83 | 10 | 1 | 1 | 1 |
| Ferritin | μg/L | 30.86 | 1 | 1 | 1 | 5 @ 56
20 @ 415 |
| Glucose | mmol/L | 0.45 | 0.1 | 0.1 | 0.1 | 0.1 @ 3.4
0.5 @ 15.0 |
| LD | U/L | 21.84 | 1 | 1 | 1 | 5@ 115
10 @ 436 |
| Urea | mmol/L | 0.48 | 0.1 | 0.1 | 0.1 | 0.2 @ 5.5
0.5 @ 18.5 |
| Cortisol | nmol/L | 47.61 | 1 | 1 | 1 | 10@81
40@550 |
*
RI according to Badrick et al. (Reference 3). Reporting Interval dependent on concentration or activity.