20 CFR Appendix C to Part 718: Appendix C to Part 718—Blood-Gas Tables

The following tables set forth the values to be applied in determining whether total disability may be established in accordance with § 718.204(b)(2)(ii). The values contained in the tables are indicative of impairment only. They do not establish a degree of disability except as provided in § 718.204(b)(2)(ii) of this subchapter, nor do they establish standards for determining normal alveolar gas exchange values for any particular individual. Tests must not be performed during or soon after an acute respiratory or cardiac illness. A miner who meets the following medical specifications must be found to be totally disabled, in the absence of rebutting evidence, if the values specified in one of the following tables are met:

(1) For arterial blood-gas studies performed at test sites up to 2,999 feet above sea level:

Arterial PCO2 (mm Hg) Arterial PO2 equal to or less than (mm Hg)

25 or below 75

26 74

27 73

28 72

29 71

30 70

31 69

32 68

33 67

34 66

35 65

36 64

37 63

38 62

39 61

40-49 60

Above 50 (1)

1 Any value.

(2) For arterial blood-gas studies performed at test sites 3,000 to 5,999 feet above sea level:

Arterial PCO2 (mm Hg) Arterial PO2 equal to or less than (mm Hg)

25 or below 70

26 69

27 68

28 67

29 66

30 65

31 64

32 63

33 62

34 61

35 60

36 59

37 58

38 57

39 56

40-49 55

Above 50 (2)

2 Any value.

(3) For arterial blood-gas studies performed at test sites 6,000 feet or more above sea level:

Arterial PCO2 (mm Hg) Arterial PO2 equal to or less than (mm Hg)

25 or below 65

26 64

27 63

28 62

29 61

30 60

31 59

32 58

33 57

34 56

35 55

36 54

37 53

38 52

39 51

40-49 50

Above 50 (3)

3 Any value.