| NYHA functional class I & II |
|---|
| Unrestricted. Supplemental oxygen suggested if pulmonary hypertension is present. |
| NYHA functional class III |
| Suplemental oxygen required. |
| NYHA functional class IV |
| Only if medically necessary and accompanied*. |
* Accompanied by physician with attached ECG monitor/defibrillator, oxygen and appropriate medication.