High Hgb is known as polycythemia. This means you have too many red blood cells. Polycythemia vera is a cancer of the blood in which your bone marrow overproduces red blood cells.
With polycythemia, a blood test also shows that you have a high red blood cell count and high hematocrit. High Hgb may result from your body needing to store more Hgb in red blood cells due to your environment, a condition that affects your heart or lung function, or lifestyle choices. The earlier you notice the symptoms of abnormal Hgb levels and have the cause diagnosed, the more likely you are to have successful treatment. Hemoglobin is a protein in your red blood cells that carries oxygen to the rest of your body.
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In all cases, the bone marrow has difficulty producing normal, healthy red blood cells. Normal hemoglobin levels can vary based on several factors, including age and sex. Sometimes, deficiencies in iron can cause your hemoglobin levels to decline. If you are experiencing symptoms that indicate low hemoglobin levels , consult with your doctor first to diagnose and confirm the cause of your symptoms. If your doctor confirms that your hemoglobin levels are low due to a deficiency in iron , then you can increase your hemoglobin levels by eating iron-rich foods.
Iron deficiency can lead to low hemoglobin levels because hemoglobin contains iron atoms as one of its main components. Certain people are more likely to have inadequate iron in their blood, including [] :.
Your doctor may recommend that you eat more foods containing iron. According to the NIH, foods rich in iron include:. Heme iron has a higher bioavailability than nonheme iron. This means that sources of food with heme iron are more readily absorbed by hemoglobin.
To get good absorption of the iron from nonheme iron sources, eat a lot of foods in this category. Avoid foods that can prevent iron from getting absorbed. These include polyphenols in certain vegetables , tannins in tea , phytates in bran , and calcium in dairy products. For more specific iron-rich foods, check the NIH fact sheet. Your doctor may also prescribe iron supplements in addition to iron-rich foods. Guidelines for iron supplements vary depending on the official recommending body.
If your doctor confirms that you have anemia, your low hemoglobin levels may be due to a lack of vitamin B12 or folate. If so, your doctor may advise that you increase your hemoglobin with the following foods that are rich in both folic acid and vitamin B Normal hemoglobin is known as Hemoglobin A1 HbA.
Hemoglobin A1c is hemoglobin that has glucose attached to it. The higher your blood glucose level, the more chances that glucose will bind to your hemoglobin and convert it into A1c. Hemoglobin levels are measured by a blood test. A low level of hemoglobin in the blood relates directly to a low level of oxygen.
In the United States, anemia is diagnosed if a blood test finds less than In children, normal levels vary according to age.
High hemoglobin levels could be indicative of the rare blood disease, polycythemia. It causes the body to make too many red blood cells, causing the blood to be thicker than usual.
This can lead to clots, heart attacks , and strokes. It is a serious lifelong condition that can be fatal if it is not treated. High hemoglobin can also be caused by dehydration , smoking, or living at high altitudes, or it can be linked to other conditions, such as lung or heart disease. Low hemoglobin levels usually indicate that a person has anemia. There are several kinds of anemia:. Newborns have a temporary anemia when they are weeks old. This occurs when they run out of the red blood cells they are born with but their bodies have not made new red blood cells.
This condition will not affect the baby adversely unless they are sick for some other reason. Babies can also have anemia from breaking down cells too quickly, which results in yellowing skin, a condition known as jaundice. This often occurs if the mother and baby have incompatible blood types. People who do vigorous exercise are also at greater risk, as exertion can lead to a breakdown of red blood cells in the bloodstream.
Women who are menstruating or pregnant may also be at increased risk of developing anemia. People who have chronic health conditions, including autoimmune conditions, liver disease, thyroid disease and inflammatory bowel disease, may have lower hemoglobin levels, which increases the chances of developing anemia. Hemoglobin levels increase in situations where a person needs more oxygen in their body. Consequently, someone who has lung or kidney disease, who smokes, or is dehydrated, may be at risk of increased hemoglobin levels.
While many types of anemia cannot be prevented, eating iron-rich foods, such as beef, dark green leafy vegetables, dried fruits, and nuts can prevent anemias caused by iron or vitamin deficiencies. Meat and dairy are good sources of vitamin B12, and folic acid is found in citrus juices, legumes, and fortified cereals.
The American Society of Hematology recommend taking a daily multivitamin to help prevent nutritional anemias.
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