Table 1. Patient Characteristics.
| Gender | N = 125 | % |
| Female | 71 | 56 |
| Male | 54 | 43.2 |
| Age | 63 (median) | 22 - 92 years |
| Indication for PRBC transfusion | ||
| Acute blood loss | 25 | 16.6 |
| Coronary artery disease with NSTEMI | 25 | 16.6 |
| Septic shock | 61 | 49 |
| Invasive procedure | 14 | 11.2 |
| No. of PRBC transfusions | ||
| 1 unit | 104 | 83.2 |
| 2 units | 11 | 8.8 |
| 3 units | 9 | 7.2 |
| 7 units | 1 | 0.8 |
| Intravenous access | ||
| Central line | 72 | 57.6 |
| Peripheral line | 53 | 42.4 |
| Age of blood | 15 days | 2 - 36 days |
| Medications | ||
| ACE /ARB inhibitors | 21 | 16.8 |
| Spironolactone | 8 | 6.4 |
| Insulin | 38 | 30.4 |
| Diuretics | 66 | 52.8 |
| Morbidities | ||
| Acidosis (pH < 7.3) | 63 | 50.4 |
| Acute renal failure | 75 | 60 |
| End-stage renal disease | 12 | 9.6 |