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8. How Can Hematocrit and Hemoglobin Help Understand ABG Values?

The doctor will often run additional blood tests along with a basic ABG test. The hemoglobin value reflects the protein in the red blood cells that transport oxygen. Variations in this value could indicate respiratory issues may not be the only factor in blood oxygen levels. Hematocrit indicates the concentration of red blood cells, and plays a similar role in evaluating respiratory conditions.

arterial blood gas ABG

Sohel_Parvez_Haque / Getty Images

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