metHb >30% 時會低估
egans p.392原文:
As metHb level increases, SpO2 decreases and plateaus at approximately 85% when the metHb level reaches 30%.
44.脈衝式血氧飽和度偵測法(pulse oximetry)何時易低估真實血氧飽..-阿摩線上測驗