A hemoglobin test measures the amount of hemoglobin in red blood cells, which is essential for transporting oxygen throughout the body and carbon dioxide back to the lungs. Normal hemoglobin levels ...
An Hgb blood test measures a person’s hemoglobin levels. This protein helps red blood cells carry oxygen and keep cells and organs functioning. Low hemoglobin is known as anemia. Hemoglobin is also ...
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