Certain studies have also found high hemoglobin levels in patients with chronic renal failure or severe renal impairment who were on Erythropoietin Stimulating Agents (ESAs).In several patients, a history of prolonged consumption of iron supplements needs to be elicited.The reason for this was found to be increased viscosity of blood. A latest study conducted shows a positive association between high hemoglobin levels and high blood pressure.Although high hemoglobin is not associated with any significant mortality, it definitely points to serious disorders of blood which need to be paid attention to.
An additional risk of thromboembolism (clotting of blood within the blood vessels) is also present with increased blood viscosity.Increased viscosity, just like anemia causes reduced oxygen supply to organs and tissues.When the hemoglobin is abnormally high, there is an increase in viscosity of blood.Hematocrit values are raised in presence of high hemoglobin levels. Hematocrit means the percentage of red blood cells present in a given sample of blood. Another blood parameter in a complete blood count test will show is Hematocrit value. Normal Range Varies in Newborns According to their AgeĪny hemoglobin reading above the upper limit of the normal range mentioned is considered to be high.
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