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www.reference.com/article/causes-high-red-blood-cell-count-6720c67fa5e3ffa1

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.

www.reference.com/world-view/symptoms-high-red-blood-cell-count-16ef92fe1e539b2c

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 the kidney or liver, fullness and weight loss are common, says WebMD.

www.reference.com/article/red-blood-cell-count-tell-e25317bafc25535

A red blood cell count indicates how many red blood cells a person has, according to MedlinePlus. Doctors use it to diagnose conditions such as anemia, as well as other medical conditions. A normal range of red blood cells for women is 4.2 to 5.4 million cells per microliter, while a normal range fo

www.reference.com/article/normal-range-red-blood-cell-count-fe51646df75741ce

A normal red blood cell count ranges from 4.7 to 6.1 million cells per microliter in males and from 4.2 to 5.4 million cells per microliter in females, states MedlinePlus. Normal values differ slightly depending on the laboratory and measurements used, so patients should discuss individual results w

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An elevated red blood cell count is associated with dehydration, congenital heart disease, kidney tumors, bone marrow diseases and scarring of the lungs, reports MedlinePlus. Red blood cells contain hemoglobin, a protein that transports oxygen.

www.reference.com/article/normal-white-blood-cell-count-feace047c5368746

In general, a normal white blood cell count ranges from 4,500 to 10,000 white blood cells per microliter, states MedlinePlus. Normal results may vary depending on the lab used, so it is best for patients to talk to their doctors about the results.

www.reference.com/world-view/white-blood-cell-count-normal-11aad47bcc781aa9

A person knows if his white blood cell count is normal by getting a complete blood count, according to Mayo Clinic. This test measures white blood cells, red blood cells, hemoglobin, hematocrit and blood platelets.

www.reference.com/world-view/causes-red-blood-cell-count-low-b45af9f8b346c56b

One cause of low red blood cell count is pregnancy, but this is normal, according to Mayo Clinic. However, among the many other conditions and diseases that can cause a low red blood cell count are cancer, aplastic, vitamin-deficiency and iron-deficiency anemia, internal or external bleeding and por

www.reference.com/world-view/symptoms-having-low-red-blood-cell-count-4ab6d8840afc1142

A low red blood cell count, most often referred to as anemia, can cause weakness, fatigue, dizziness, fainting, lack of energy, pale skin, rapid heart rate or palpitations and shortness of breath. Chronic anemia in children may cause learning problems and increased risk of infection, says MedicineNe

www.reference.com/world-view/causes-increase-red-blood-cell-count-a74078ce13ecdfcd

Several medical conditions ヨ dehydration, cigarette smoking and certain medications ヨ may cause high red blood cell counts, according to MedlinePlus. To intentionally increase low red blood cell counts as treatment for anemic patients, options include vitamin and mineral supplementation, blood trans