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Learn why you may need an Hgb test, what the typical ranges are for Hgb, and what can cause abnormal Hgb levels. What is a healthy hemoglobin level by age? Your age and gender both affect...
A hemoglobin test is a blood test. It measures the amount of a protein in red blood cells called hemoglobin. Hemoglobin carries oxygen to the body's organs and tissues when you breathe in. Then it carries the waste gas carbon dioxide back to the lungs to be breathed out.
Your hemoglobin level reflects the number of red blood cells in your body and how efficiently they carry oxygen to your cells. This protein contains iron, which can be measured with a blood test. Many things cause low or high hemoglobin, and they produce a variety of symptoms.
Normal hemoglobin levels in the blood typically depend on sex, age and general health. Abnormally low or high levels of hemoglobin can indicate a range of health conditions, including anemia and sickle cell disease.
Results of a typical blood draw for a hemoglobin test will be ready within a day or two. Your healthcare provider will consider your medical history, physical examination, and other diagnostic tests when interpreting your hemoglobin test results.
Information about low and high hemoglobin levels in the blood. Learn about normal, high, and low hemoglobin levels can cause disease of anemia, sickle cell, and thalassemia.
Hemoglobin tests are part of a complete blood count (CBC) test, which identifies the number of red blood cells, white blood cells and platelets in a blood sample. This information allows your provider to assess your health and screen for certain conditions.
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