Arterial Blood Gases Dawson Creek and District HospitalFort St. John Hospital and Peace VillaPrince George - University Hospital of Northern BC (UHNBC)Terrace - Kysen Regional Hospital Detailed Pulmonary Function Test Prince George - University Hospital of Northern BC (UHNBC) Home oxygen assessment may include: Resting Saturations, Room Air ABG, Exercise Desaturation, Overnight Oximetry Dawson Creek and District HospitalFort St. John Hospital and Peace VillaPrince George - University Hospital of Northern BC (UHNBC)Terrace - Kysen Regional Hospital Methacholine Challenge Testing Prince George - University Hospital of Northern BC (UHNBC) Overnight Oximetry Dawson Creek and District HospitalFort St. John Hospital and Peace VillaPrince George - University Hospital of Northern BC (UHNBC)Terrace - Kysen Regional Hospital Respiratory Muscle Function Testing Prince George - University Hospital of Northern BC (UHNBC) Six Minute Walk Test Dawson Creek and District HospitalFort St. John Hospital and Peace VillaPrince George - University Hospital of Northern BC (UHNBC)Terrace - Kysen Regional Hospital Spirometry Dawson Creek and District HospitalFort St. John Hospital and Peace VillaFraser Lake Community Health CentreHazelton - Wrinch Memorial HospitalKitimat General Hospital and Health CentrePrince George - University Hospital of Northern BC (UHNBC)Prince Rupert Regional HospitalQuesnel - GR Baker Memorial HospitalSmithers - Bulkley Valley District HospitalTerrace - Kysen Regional HospitalVanderhoof - St. John Hospital