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www.reference.com/world-view/mean-hemoglobin-level-high-c97056240b3a246f

A high hemoglobin level indicates long-term hypoxia or low blood oxygen levels, explains MedlinePlus. High hemoglobin levels commonly result from severe chronic obstructive pulmonary disease, cor pulmonale or failure of the heart's right side, congenital heart disease, or lung disorders such as pulm

www.reference.com/article/normal-level-hemoglobin-929e71b41a55f4f3

The normal levels of hemoglobin are between 13.5 and 17.5 grams per deciliter of blood for men, and between 12.0 and 15.5 grams per deciliter of blood for women. If hemoglobin is lower than the normal level, a diagnosis of anemia can be made, notes Mayo Clinic.

www.reference.com/world-view/causes-low-hemoglobin-levels-1dd09591e84554f2

Low hemoglobin counts may be linked to certain diseases and conditions such as cancer, cirrhosis, hypothyroidism, iron deficiency anemia, kidney disease, leukemia and certain medications. Additional causes may include an enlarged spleen, vasculitis and blood loss resulting from a wound, bleeding in

www.reference.com/world-view/causes-high-hemoglobin-51796e45f6bcd634

Causes of high hemoglobin include increase in red blood cell production, smoking, certain medications and bone marrow disease. Some conditions, such as heart failure, liver cancer, kidney cancer and dehydration can also lead to high hemoglobin count, as stated by Mayo Clinic.

www.reference.com/article/hemoglobin-ead6edfc1f9065c7

According to the Information Center for Sickle Cell and Thalassemic Disorders, hemoglobin bonds to oxygen molecules from the lungs and delivers them to cells throughout the body. It does this with two similar bonded proteins which are necessary for the capture and release of oxygen via a central iro

www.reference.com/article/dangerous-hemoglobin-level-7288bcdc142f4989

A dangerous hemoglobin level is hemoglobin greater than 18.5 g/dL in men and 16.5 g/dL in women, Medscape states. This is known as polycythemia.

www.reference.com/article/high-hemoglobin-levels-dangerous-92a788d177a7e86c

An elevated hemoglobin count may impair circulation and disrupt the adequate delivery of oxygen to the tissues, possibly leading to peripheral cyanosis and impaired mental function due to poor cerebral circulation, according to SteadyHealth. Elevated hemoglobin also increases the risk of thrombo-emb

www.reference.com/article/causes-low-hemoglobin-blood-levels-d15fe5ffea9fce29

Conditions such as Hodgkin's disease, cirrhosis of the liver and different types of anemia can cause low hemoglobin levels, as stated by Mayo Clinic. Pregnancy, kidney disease, certain medications and lead poisoning can cause low hemoglobin levels as well.

www.reference.com/article/good-foods-increase-hemoglobin-levels-12b1f0f6567b41f7

Increase hemoglobin levels by eating foods rich in heme and non-heme iron. Heme iron comes from hemoglobin and is present in poultry, fish and red meat. The human body absorbs most of the iron it needs from heme iron sources. Non-heme iron is found in grains, vegetables and fortified commercial food

www.reference.com/article/causes-low-hemoglobin-82c67dcf449cfad2

A low hemoglobin count, also known as anemia, is caused by pregnancy, a menstrual period, a diet low in iron, blood loss, or a disease that causes the body to produce fewer red blood cells or to destroy red blood cells. According to the Mayo Clinic, medications also sometimes cause anemia. These inc