28 CFR Appendix B
Blood-Gas Study Tables
July 24, 2020
For arterial blood-gas studies performed at test locations between sea level and 2,999 feet above sea level:
Open Table
| Arterial pCO2 | and arterial pO2 |
|---|---|
| 25 mmHg or below | 80 mmHg or below. |
| 26 mmHg | 79 mmHg or below. |
| 27 mmHg | 78 mmHg or below. |
| 28 mmHg | 77 mmHg or below. |
| 29 mmHg | 76 mmHg or below. |
| 30 mmHg | 75 mmHg or below. |
| 31 mmHg | 74 mmHg or below. |
| 32 mmHg | 73 mmHg or below. |
| 33 mmHg | 72 mmHg or below. |
| 34 mmHg | 71 mmHg or below. |
| 35 mmHg | 70 mmHg or below. |
| 36 mmHg | 69 mmHg or below. |
| 37 mmHg | 68 mmHg or below. |
| 38 mmHg | 67 mmHg or below. |
| 39 mmHg | 66 mmHg or below. |
| 40-49 mmHg | 65 mmHg or below. |
| Above 50 mmHg | Any value. |
For arterial blood-gas studies performed at test locations above 3,000 feet above sea level:
Open Table
| Arterial pCO2 | and arterial pO2 |
|---|---|
| 25 mmHg or below | 75 mmHg or below. |
| 26 mmHg | 74 mmHg or below. |
| 27 mmHg | 73 mmHg or below. |
| 28 mmHg | 72 mmHg or below. |
| 29 mmHg | 71 mmHg or below. |
| 30 mmHg | 70 mmHg or below. |
| 31 mmHg | 69 mmHg or below. |
| 32 mmHg | 68 mmHg or below. |
| 33 mmHg | 67 mmHg or below. |
| 34 mmHg | 66 mmHg or below. |
| 35 mmHg | 65 mmHg or below. |
| 36 mmHg | 64 mmHg or below. |
| 37 mmHg | 63 mmHg or below. |
| 38 mmHg | 62 mmHg or below. |
| 39 mmHg | 61 mmHg or below. |
| 40-49 mmHg | 60 mmHg or below. |
| Above 50 mmHg | Any value. |
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