hemoglobin oxygen saturation

Introduction

The % of hemoglobin bound to oxygen, obtained from arterial blood gas measurements or from pulse oximetry.

Reference interval

• arterial blood (adult) 94-100%, (fetus) > 40%

More general terms

• clinical hematology test

More specific terms

• SaO2

Additional terms

• hemoglobin-oxygen affinity; pO2 for 50% hemoglobin saturation with oxygen; oxygen P50
• oxyhemoglobin in blood