Table 2 Pre-analytical, analytical and post-analytical percent of errors in clinical chemistry laboratory, at SPHMMC, Addis Ababa, Ethiopia, N = 541
Pre-analytic phase | N (%) | Analytic phase | N (%) | Post-analytic phase | N (%) |
|---|---|---|---|---|---|
Inadequate sample | 220 (40.6) | Equipment malfunction | 16 (2.95) | Communication | 75 (14) |
Hemolyzed sample | 124 (22.9) | QC incompatibility | 16 (2.95) | Transcription | 6 (1.1) |
Lipemic sample | 25 (4.6) | Reagent expired | 7 (1.3) | Data entry | 17 (3.1) |
Icterus sample | 15 (2.8) | Reagent contamination | 1 (0.2) | Sample delay | 4 (0.7) |
Over volume | 9 (1.7) | Reagent storing | 4 (0.7) | Loss of results | 2 (0.4) |
Total | 393 (73) | Total | 44 (8.3) | Total | 104 (19) |