Table 1 Main biochemical changes in RBC storage medium and in loss of RBC deformability over the storage period [[10, 67]]
From: Age of red blood cells and transfusion in critically ill patients
Variables | Length of storage | |||
|---|---|---|---|---|
Day 1 | Days 7 | Days 15 | Day 42 | |
K (mmol/L) | 3.9 ± 0.6 | 13.6 ± 1.7 | 24.5 ± 2.1 | 46.6 ± 4.1 |
pH | 6.8 ± 0.03 | 6.74 ± 0.03 | 6.64 ± 0.02 | 6.37 ± 0.04 |
Lactate (mmol/L) | 3.6 ± 0.4 | 7.8 ± 0.7 | 17.2 ± 2.5 | 34.5 ± 4.4 |
Iron (μmol/L) | 3.8 ± 0.9 | 6.8 ± 2.9 | 7.6 ± 1.6 | 14.2 ± 2.9 |
Free hemoglobin (g/L) | 1.3 ± 0.5 | 1.5 ± 0.8 | 1.7 ± 0.5 | 3.0 ± 2.1 |
Percentage of irreversible deformed RBCs | - | 8.4 ± 1.6 | 14.7 ± 2.6 | 29.9 ± 4.0 |