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  1. Hemoglobin: Normal, High, Low Levels by Age, Test, Deficiency

    Mar 7, 2024 · Hemoglobin (abbreviated Hgb or Hb) is the protein molecule in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the …

  2. Low Hemoglobin: Causes, Signs & Treatment - Cleveland Clinic

    Hemoglobin is a protein in your red blood cells. Low hemoglobin levels may be a symptom of several conditions, like different kinds of anemia and cancer.

  3. What Causes High or Low Hemoglobin Levels? - Verywell Health

    May 12, 2025 · High or low hemoglobin levels can be a sign of serious illness. Learn the causes, risk factors, symptoms, and treatments for abnormal hemoglobin.

  4. Hemoglobin - Wikipedia

    Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the other tissues of the body, where it releases the oxygen to enable aerobic respiration which powers an animal's …

  5. Hemoglobin test - Mayo Clinic

    Apr 12, 2024 · 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. If a hemoglobin test …

  6. What is Hemoglobin? Normal Levels and Potential Problems

    Jul 12, 2023 · Hemoglobin is an essential component of your red blood cells that allows them to distribute oxygen throughout your body. When your hemoglobin levels are low, you might feel …

  7. Hemoglobin Test: Normal, High, Low Levels & 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.

  8. Understanding Normal, Low, and High Hemoglobin Levels

    Learn about normal hemoglobin levels, causes of low and high hemoglobin, symptoms, and how to manage hemoglobin levels for better health.

  9. Hemoglobin - University of Rochester Medical Center

    Hemoglobin is carried by your red blood cells. If your hemoglobin is too low, you may not be able to supply the other cells in your body with the oxygen they need to survive.

  10. Hemoglobin: Normal, High, and Low Levels by Age

    Hemoglobin, found in red blood cells (RBCs), carries oxygen from the lungs to the rest of the body and returns carbon dioxide to the lungs for exhalation. Healthy red blood cells rely on adequate …