E
COHb |
C G |
Level
(0)
>3%, but <10% |
Level
(1)
≥10%, but<20% |
Level
(2)
≥20%, but<25% |
Level
(3)
≥25% |
| No |
% |
No |
% |
No |
% |
No |
% |
| Normal ECG |
1 |
25 |
0 |
0 |
1 |
10 |
0 |
0 |
| Tachycardia |
3 |
75 |
12 |
57.1 |
4 |
40 |
8 |
53.3 |
| ST segment changes with inverted T wave |
0 |
0 |
10 |
47.6 |
2 |
20 |
0 |
0 |
| Prolonged Q-T interval |
0 |
0 |
8 |
38 |
5 |
50 |
3 |
20 |
| Prolonged Q-T interval, ST segment changes & inverted T wave |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
20 |
| Premature ventricular contractions |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
20 |
|
