Genetic mutations, both inherited and acquired, are one primary cause of high red blood cell counts, also known as polycythemia, says MedicineNet. Sleep apnea and tumors are secondary causes of polycythemia. More »

A high MPV, or mean platelet volume, count on a blood test may indicate a congenital platelet disorder such as immune thrombocytopenic purpura or Bernard-Soulier disease, states Lab Tests Online. MPV measures the average... More »

www.reference.com Health Medical Ranges & Levels

Generally, a count that is over 500,000 platelets per microliter of blood is considered high enough to seek the underlying cause, notes Mayo Clinic. A normal platelet range is 150,000 to 450,000 platelets. A high platele... More »

Typical symptoms of a high red blood cell count include fatigue and weakness, joint pain, itching and headaches, according to MedicineNet. In cases where this condition is accompanied by risk factors such as cancer of th... More »

Among the treatments doctors can give to bring down a high red blood cell count are drawing the patient's blood, and giving them medication to bring down the count or prevent the blood from coagulating, according to WebM... More »

A normal white blood cell count is any number between 4,500 and 10,000 white blood cells per microliter of blood. Normal values may be different in different laboratories throughout the United States. More »

www.reference.com Science Human Anatomy Blood

The normal white blood cell count for children is between 5,000 and 10,000 white blood cells per microliter of blood. When white blood cells drop below 1,000, the chances of infection increase. More »

www.reference.com Science Human Anatomy Blood