Tabe 1. Summary of blood gas results grouped according to oxygen saturation levels
| Oxygen Saturation Range | Number of samples | Percent of samples | Number (percent) hypercapnic | Number (percent) uncompensated respiratory acidosis | Number (percent) compensated respiratory acidosis | Number (percent) uncompensated metabolic acidosis |
|---|---|---|---|---|---|---|
| >98% | 1458 | 41.3% | 305 (21%) | 83 (6%) | 161 (11%) | 111 (8%) |
| 94–98% | 1291 | 36.6% | 294 (23%) | 65 (5%) | 167 (13%) | 90 (7%) |
| 92.1–93.9% | 237 | 6.7% | 85 (36%) | 14 (6%) | 58 (24%) | 15 (6%) |
| 88–92% | 288 | 8.2% | 119 (41%) | 35 (12%) | 61 (21%) | 17 (6%) |
| 80–87.9% | 154 | 4.3% | 76 (49%) | 18 (12%) | 41 (27% | 6 (4%) |
| 70–79.9% | 53 | 1.5% | 40 (75%) | 12 (23%) | 21 (40%) | 1 (2%) |
| 60–69.9% | 22 | 0.6% | 14 (64%) | 6 (27%) | 4 (18%) | 4 (18%) |
| <60% | 21 | 0.6% | 15 (71%) | 6 (29%) | 5 (24%) | 2 (10%) |
| Total | 3524 | 100% | 948 (26.9%) | 239 (6.8%) | 518 (14.7%) | 246 (7.0%) |
65 samples had mixed respiratory-metabolic acidosis.