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White blood cells (leukocytes) make up about 1% of our blood and they help protect the body against illness and disease.

White blood cells are produced in the bone marrow and stored in the blood and lymph tissues.

What Is the Function of White Blood Cells?

There are several different types of white blood cells that each have slightly different functions.

Neutrophils

These white blood cells are the body’s first line of defense when infection occurs

They kill and digest bacteria and fungi and turn into pus when they die

These are the most numerous type of white blood cell, comprising about 60 to 70% of the total number of white blood cells

Lymphocytes

These white blood cells create antibodies to fight against bacteria, viruses, and other harmful germs

There are many different types of lymphocytes

They make up about 30% of the total number of white blood cells

Monocytes

These white blood cells have a longer lifespan than other white blood cells and help to break down bacteria

They make up about 8% of the total number of white blood cells

Eosinophils

These white blood cells attack and kill parasites and cancer cells

They also help with allergic responses

They make up about 1 to 3% of the total number of white blood cells

Basophils

These white blood cells release histamine during an allergic reaction which promotes blood flow to the body’s tissues

They play a role in fighting infection

They make up about 0.5% of the total number of white blood cells

What Is a Dangerous White Blood Cell Count?

A normal white blood cell count is generally about 4,500 to 11,000/μL.

White blood cell counts that are too high or too low may be dangerous, depending on the cause.

A high white blood cell count is called leukocytosis, which is generally diagnosed when white blood cell levels exceed 11,000/μL. This occurs when the immune system is stimulated in some way.

Causes of high white blood cell counts include:

Infections, such as bacterial infections

Leukemia and lymphoma, which are types of cancers

Trauma

Extensive wounds or burns

Acute or chronic inflammation such as from autoimmune disease, Allergies, and other inflammatory problems

Cigarette smoking

Use of certain drugs, including corticosteroids heparin, lithium, albuterol, and similar drugs

A low white blood cell count is called leucopenia, which is generally diagnosed when white blood cell levels are below 4,500/μL.

Causes of low white blood cell counts include:

Tumors or disease in the bone marrow

Certain drugs, such as chemotherapy for cancer, some antibiotics and diuretics, anti-thyroid hormone drugs, captopril, seizure medications, and others

Liver and spleen problems

Radiation therapy to treat cancer

Leukemia and other cancers

Physical or emotional stress

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Sri Vaishnavi

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2y ago
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Allene Morissette

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2y ago
Are you sure
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Wiki User

12y ago

wbcs 24500/cumm is called leucocytosis.

wbcs increased than normal range in bacterial infection.

above mentioned TLC show acute infection, such as tonsilitis, appendicitis etc.

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Wiki User

13y ago

Yes a 6 white blood count is bad, it is lower then 7, do the math.

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Wiki User

7y ago

More than 11,000 is considered to be high, 20,000 means a serious infection.

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Wiki User

6y ago

Miss a acc of 26 bad.

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Wiki User

14y ago

no

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Wiki User

11y ago

No

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Q: Is white blood cell count 90 dangerous?
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