This is more then likely why your doc wont up ur dose..surprised he didnt suggest donating tho
Possible causes of elevated hemoglobin
A high hemoglobin count usually suggests that you have too many red blood cells. This condition is also called erythrocytosis. It can lead to a several complications because it can impair circulation and lead to abnormal clotting.
An elevated hemoglobin concentration is usually the result of 2 mechanisms:
increased red blood cell production as a compensatory mechanism when blood oxygen carrying capacity is compromised to meet the demand of tissue
contracted plasma volume resulting in an appearance of greater red cell volume
Causes of an elevated hemoglobin count may include:
Living at high altitudes- Because the higher the altitude is, the lower oxygen level is in the air- body is producing more hemoglobin to bind as much oxygen as it is possible!
Smoking- Several studies done in the past with smokers volunteers have proven that great percentage of the smokers have the elevated hemoglobin level, although the mechanism is still unknown. Some experts believe that it could be because of low level of "pure" oxygen in the smoker's lungs! So, this could be an adoptive mechanism on low oxygen levels!
Dehydration - Dehydration produces falsely high hemoglobin which disappears when proper fluid balance is restored.
The symptoms and possible complications
Although much of the clinical focus has been on anemia as a condition where there is lack of hemoglobin, there are also problems at the high end.
The most notable consequence is increased blood viscosity.
Several studies have proven that the relation between hemoglobin and blood viscosity is linear when the hematocrit is <0.50 (equivalent to a hemoglobin value of 160 g/L). Above this hemoglobin concentration, the relation becomes exponential, which means that a small increase in hemoglobin or hematocrit results in a large increase in viscosity. Once hemoglobin concentrations reach 180 g/L, the blood viscosity reaches a level that impairs microcirculation and an inadequate amount of oxygen is transported to tissues, similar to the situation with severe anemia.
Symptoms
Peripheral cyanosis and impaired mental function resulting from compromised cerebral blood circulation are the two most common symptoms of elevated hemoglobin! Additionally, because of the poor blood flow, the risk of thrombo-embolism increases significantly.
Treatment
Because the high hemoglobin couldn't be considered as a special disorder it could be only treated as a symptom of some other underlying disease. That's why- treating the underlying disease will probably lower the hemoglobin level!
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Answers.com - What does an Elevated hemoglobin mean