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A high white blood cell count typically indicates a bacterial or viral infection; a disorder of the immune system; a reaction to medication; leukemia; allergic reaction; stress; or smoking, as stated by Mayo Clinic. Tube... More »

www.reference.com Health Medical Ranges & Levels

Common causes of a high white blood cell count include infection, drug reaction, immune system disorder and bone marrow disease, according to Mayo Clinic. Severe allergic reactions, smoking, and high levels of physical o... More »

www.reference.com Health Medical Ranges & Levels

Infections and inflammation usually cause high white blood cell counts, according to the American Association for Clinical Chemistry. The elevated count can be also be attributed to allergic responses, severe stress and ... More »

www.reference.com Health Medical Ranges & Levels
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A high white blood cell count may indicate anemia, infection, allergic reaction or leukemia, states MedlinePlus. Other causes include extensive tissue damage, cigarette smoking and severe mental or physical stress. Takin... More »

www.reference.com Health Medical Ranges & Levels

A high absolute neutrophil count may indicate inflammation, infection, stress, reaction to medication or the presence of cancer, according to HealthTap contributor Dr. Reid Blackwelder. In most instances, levels above 8,... More »

www.reference.com Health Medical Ranges & Levels

A high white blood cell count affects the ability to donate blood, since it is a sign of infection, disease, drug reaction or immune system disorder that must be resolved before donating, state Mayo Clinic and the Americ... More »

www.reference.com Health Medical Ranges & Levels

A high white blood cell count indicates an underlying problem, such as an infection or reaction to a medication. High white blood cell counts must be evaluated by a doctor, according to Froedtert & the Medical College of... More »

www.reference.com Health Conditions & Diseases