Higher than normal amount of RBCs produced by the bone marrow can cause the hematocrit to increase, leading to increased blood density and slow blood flow.
The Packed Cell Volume Test depends on the count as well as the average size of the RBCs (Mean Corpuscular Volume or MCV). Hence, the bone marrows continuously produce RBCs to maintain a steady concentration in blood. Living at high altitudes where there's less oxygen in the air may cause a high hematocrit. The average lifespan of RBCs in circulation is 120 days. Your blood plasma level is too low, which may be caused by: Dehydration, the most common cause of a high hematocrit Shock If your results are not in the normal range, it doesn't always mean that you have a medical condition that needs treatment. RBCs are produced in the erythropoietic cells of the bone marrow in response to the hormone Erythropoietin secreted by the kidneys when oxygen saturation of blood is detected to be low (hypoxia). They contain a protein called hemoglobin which binds to oxygen for transport. Test, Reference Range Hb, Haemoglobin, male 133 - 167 female 118 - 148 RBC, Red Blood Cell Count, male 4.32 - 5.66 female 3.88 - 5.00 HCT, Haematocrit /. The majority of carbon dioxide is transported in solution in plasma as bicarbonate ions. The RBCs transport inhaled oxygen from the lungs to all the cells of the body, and also a small amount of carbon dioxide from the cells to the lungs to be exhaled. The packed cell volume or hematocrit is a ratio of the volume occupied by the RBCs to the total volume occupied by all the blood components or whole blood. Each of the component of blood performs a specific function. Human blood is made up of erythrocytes or red blood cells, leukocytes or white blood cells, and platelets suspended in a fluid called plasma.
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