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 »

A high platelet count can be caused by a bone marrow condition that produces too many platelets, a separate disease, or another condition that affects platelet count, according to the National Heart, Lung, and Blood Inst... More »

www.reference.com Health Medical Ranges & Levels

Symptoms of a high platelet count include headache, bleeding, feeling weak, and numbness in the hands or feet, states Healthgrades. Blood-clotting symptoms, including nausea, seizures, dizziness, difficulty breathing and... More »

In healthy adults, the normal blood platelet count is 150,000 to 400,000 platelets per microliter of blood, according to MedlinePlus. These values may differ slightly depending on the lab a doctor or hospital utilizes, a... More »

www.reference.com Health Medical Ranges & Levels

A normal platelet count following a blood test is in the range of 150,000 to 400,000 platelets per microliter, MedlinePlus reports. However, this range may differ slightly among different labs, or measurements may be rep... More »

www.reference.com Health Medical Ranges & Levels

A normal blood platelet count is 150,000 to 400,000 platelets per microliter, says the National Institutes of Health. Platelets are components of the blood that assist with blood clotting, and the normal range may vary s... More »

Normal blood count levels for females are 3.90 to 5.03 million red blood cells per microliter, 120 to 155 grams of hemoglobin per liter, 34.9 to 44.5 percent hematocrit, 3,500 to 10,500 white blood cells per microliter a... More »