OK, I was able to get clarification...
According to the
ALS Association and Respironics guidelines; if a Pt has a confirmed
ALS diagnosis and meets ANY ONE of the following criteria; they qualify for BiPAP under Medicare and do not need a PSG or to fail CPAP. BiPAP titration is optional and would be done only to adjust for Pt comfort. The criteria are:
FVC < 50% predicted (supine)
NIF < negative 60cm/H2 (supine)
PaCO2 =/> 45mm/Hg
Thanks!
