High hgb what does it mean

Test results may vary depending on your age, gender, health history, the method used for the test, and other things. Your test results may not mean you have a problem. Ask your healthcare provider what your test results mean for you. Normal hemoglobin is different for men, women, and children. Here are the approximate normal values:. If your child is having this test, you should discuss the results with your child's healthcare provider. High hemoglobin levels can be caused by polycythemia, heart failure, and chronic obstructive pulmonary disease.

Low hemoglobin may be caused by:. The test is done with a blood sample. A needle is used to draw blood from a vein in your arm or hand. Having a blood test with a needle carries some risks. These include bleeding, infection, bruising, and feeling lightheaded. When the needle pricks your arm or hand, you may feel a slight sting or pain. Afterward, the site may be sore. You don't need to prepare for this test. Make sure to tell your healthcare provider about:.

Be sure your healthcare provider knows about all medicines, herbs, vitamins, and supplements you are taking. Sections Basics Definition Causes When to see a doctor. Definition Causes When to see a doctor. Products and services. Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information. Please try again.

Something went wrong on our side, please try again. Show references Hemoglobin. Lab Tests Online. Accessed Dec. Blood basics. American Society of Hematology. Blood tests. National Heart, Lung, and Blood Institute.

Understanding blood counts. Tefferi A. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below.

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Definition Causes When to see a doctor. Products and services. Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information.