Question

What is meant by haemoglobin saturation? What are the factors it depends upon?

Answer 1

Hemoglobin saturation The amount of oxygen combined with hemoglobin in proportion to the amount of oxygen the hemoglobin is capable of carrying. It is expressed as a percentage of a ratio: content/capacity.

FACTORS AFFECTING THE HEMOGLOBIN SATURATION

• The partial pressure of CO2
• pH, independent of CO2
• The concentration of 2,3-DPG inside the erythrocytes
• The presence of unusual haemoglobin species
• Temperature