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  1. Mayo Clinic
    https://www.mayoclinic.org › tests-procedures › hemoglobin-test › about

    Hemoglobin test - Mayo Clinic

    • 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 w… 展开

    Why It's Done

    You may have a hemoglobin test for various reasons, including: 1. To check your overall health.Your healthcare professional may test your hemoglobin as part of a complet… 展开

    Mayo Clinic
    How You Prepare

    If your blood will be tested only for hemoglobin, you can eat and drink before the test. If your blood also will be tested for other reasons, you may be told not to eat before the test. T… 展开

    Mayo Clinic
    What You Can Expect

    For a hemoglobin test, a member of your healthcare team takes a sample of blood. Often, this is done by inserting a needle into a vein in the arm or the top of the hand. For infants, the s… 展开

    Mayo Clinic
    Results

    The healthy range for hemoglobin is: 1. For men,13.2 to 16.6 grams per deciliter. 2. For women,11.6 to 15 grams per deciliter. Healthy ranges for children vary with age and sex. The ran… 展开

    Mayo Clinic
    How much blood should be drawn for a hemoglobin test?
    Thus a single draw of 50 mL of blood would be expected to reduce hemoglobin by 0.35 g/dL, and a stay in intensive care of 10 days during which 30 mL of blood were sampled daily would result in a fall in hemoglobin concentration of the order of 2 g/dL (20 g/L).
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    目录
    Why It's Done
    How You Prepare
    What You Can Expect
    Results
    How much blood should be drawn for a hemoglobin test?