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White Blood Cell Count Normal

Leukemia White Blood Cell Count Ranges In Children

What Does a Low White Blood Cell Count Mean?

The Leukemia & Lymphoma Society says that children under 4 years old may have a higher percentage of lymphocytes in their blood than older children and adults. According to the University of Rochester Medical Center, the normal ranges of white blood cells per microliter of blood are:

  • 9,000 to 30,000 for newborns
  • 6,200 to 17,000 for children under 2
  • 5,000 to 10,000 for children over 2

Leukemia is the most common cancer in children and teens, according to the of ALL occurs in children. Diagnosis includes the presence of 20 percent or more lymphoblasts, or immature lymphocytes, in the blood or bone marrow.

Is There Anything Else I Need To Know About A White Blood Count

White blood count results are often compared with results of other blood tests, including a blood differential. A blood differential test shows the amount of each type of white blood cell, such as neutrophils or lymphocytes. Neutrophils mostly target bacterial infections. Lymphocytes mostly target viral infections.

  • A higher than normal amount of neutrophils is known as neutrophilia.
  • A lower than normal amount is known as neutropenia.
  • A higher than normal amount of lymphocytes is known as lymphocytosis.
  • A lower normal amount is known as lymphopenia.

A High Or Low Wbc Count

If your test results are abnormal, it may mean that your numbers are higher or lower than the normal range for your age.

A low or high WBC count can point to a blood disorder or other medical condition. To identify the exact cause of a high or low WBC count, your doctor will take several factors into consideration, such as your list of current medications, any symptoms you have, and your medical history.

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When Should I Get A Wbc

A WBC count is a standard component of a CBC. A doctor may order a CBC in many situations, including:

  • During a routine doctor visit or checkup
  • While you are getting medical treatment that can affect your immune system and blood cell counts
  • For ongoing monitoring of chronic health issues that can affect blood counts, including chronic bone marrow disease

Your doctor may also order a CBC if you have certain symptoms, such as:

  • Excessive tiredness or weakness
  • Fever or other symptoms of infection
  • Unexpected bleeding or bruising
  • Signs of cancer

A doctor or other health care provider can share additional information about whether a CBC may be appropriate for your situation and how a WBC count is used to understand your health.

Can I Prevent Leukocytosis

Importance of white blood cell count By OpenStax

Remember that leukocytosis is a normal immune response, so it doesnt always need to be prevented. For example, your white blood cells increase when your body needs to fight off infection or inflammation. But, there are things you can do to keep your white blood cell count in a healthy range:

  • Wash your hands frequently to reduce the risk of infection.
  • Avoid potential allergens.
  • Visit your dentist every six months.
  • Take all medications as directed by your healthcare provider.
  • Find ways to reduce your stress levels, like mindfulness or meditation.
  • Seek treatment for anxiety or depression as needed.

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Counting And Reference Ranges

The complete blood cell count is a blood panel that includes the overall white blood cell count and differential count, a count of each type of white blood cell. Reference ranges for blood tests specify the typical counts in healthy people.

The normal total leucocyte count in an adult is 4000 to 11,000 per mm3 of blood.

Differential leucocyte count: number/ of different types of leucocytes per cubic mm. of blood. Below are reference ranges for various types leucocytes.

High White Blood Cell Count

Leukocytosis is the medical term used to describe a high WBC count. This can be triggered by:

High WBC counts dont often cause symptoms, although the underlying conditions causing the high count may cause their own symptoms.

The symptoms of a low WBC count may prompt your doctor to recommend a WBC count. Its also normal for doctors to order a CBC and check your WBC count during an annual physical exam.

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How Is A White Blood Cell Count And Differential Administered

No special preparation is necessary for a WBC count or differential. Your doctor may ask you to stop taking certain medications, including over-the-counter supplements or vitamins, for several days before the sample collection occurs. Medicines, both prescription and over-the-counter, can affect white blood cell counts.

To conduct a WBC count and differential, your doctor will need to collect a blood sample from you. Blood is typically drawn from a vein in either the bend of your arm or in your hand. Once the blood is collected, its sent to a lab for analysis.

Low White Blood Cell Count Not Always A Sign Of Medical Problem

White Blood Cell Nursing Considerations, Normal Range, Nursing Care, Lab Values Nursing

Dear Mayo Clinic:

I was told after my recent physical that my white blood cell count was low. Is this something to be concerned about? Am I more susceptible to catch colds or viruses?

Answer:A low white blood cell count can sometimes be a sign of an underlying medical problem, but not always. First, it’s important to determine what your health care provider means by “low.” Not all medical laboratories use the same range to decide what’s normal and what’s not. Second, you need to consider factors such as your age, gender and ethnic group. Some groups of people just have naturally lower white blood cell levels than others. If your white blood cell count is truly lower than it should be, then further investigation is warranted to uncover the root cause.

As part of your immune system, white blood cells fight disease and are important for the body’s defense against infections. A chronically low white blood cell count can make you vulnerable to bacterial infections and could signal a serious health problem. Before you start investigating the cause of a low white blood cell count, though, it’s important to discuss with your doctor what your test results mean

Rajiv Pruthi, M.B.B.S., Hematology, Mayo Clinic, Rochester, Minn.

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Foods That Increase Wbc Counts

If your white blood cell level is low, there are changes you can make to try to increase it. Always consult with a healthcare professional before starting any new treatments, including diets, that may disrupt your WBC count. Very low WBCs are medical emergencies that require prompt treatment.

A healthy diet, rich in vegetables, and protein is a good way to maintain a healthy immune system.

A Mediterranean diet, which consists of whole grains fruits and vegetables beans, nuts, and seeds healthy fats moderate amounts of fish and poultry and limited amounts of red meat, has been shown to help boost white blood cell levels. Foods such as blueberries, strawberries, and leafy green vegetables can help reduce the risk of developing certain immune disorders. These whole foods are a good source of antioxidants, which can help support the function of a healthy immune system.

As much as possible, look to get your nutrients and antioxidants from foods. You should consult with a healthcare professional before starting any supplements.

What Abnormal Results Mean


A low number of WBCs is called leukopenia. A count less than 4,500 cells per microliter is below normal.

Neutrophils are one type of WBC. They are important for fighting infections.

A lower than normal WBC count may be due to:

  • Bone marrow deficiency or failure
  • Cancer treating drugs, or other medicines
  • Certain autoimmune disorders such as lupus ( SLE
  • Disease of the liver or spleen
  • Radiation treatment for cancer
  • Certain viral illnesses, such as mononucleosis
  • Cancers that damage the bone marrow
  • Very severe bacterial infections
  • Severe emotional or physical stress


A higher than normal WBC count is called leukocytosis. It may be due to:

  • Certain drugs or medicines
  • Cigarette smoking
  • Infections, most often those caused by bacteria
  • Inflammatory disease

There may also be less common reasons for abnormal WBC counts.

Drugs that may lower your WBC count include:

Drugs that may increase WBC counts include:

  • Beta adrenergic agonists
  • Corticosteroids

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What Does The Test Measure

A WBC count measures the total number of WBCs contained in a sample of blood. WBC, also called leukocytes, are an important part of the immune system. Made in the bone marrow, WBC help defend the body against infections and disease. There are five types of WBC, each supporting the immune system in a different way.

The WBC count is usually expressed as thousands of cells per microliter . Around 100 billion WBC are produced each day in the bone marrow. As they mature, WBC can be found in blood and the lymphatic system. There are five types of WBC:

A WBC count measures the total amount of all kinds of WBC. If a doctor needs information about the number of individual types of WBC, this information is provided in the WBC differential test.

What Happens During A White Blood Count

Table 1 from Total White Blood Cell Count, Absolute Neutrophil Count ...

A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out.

To test children, a health care provider will take a sample from the heel or the fingertip . The provider will clean the heel or fingertip with alcohol and poke the site with a small needle. The provider will collect a few drops of blood and put a bandage on the site.

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How Do I Read My Leukemia Blood Test Results

Youll probably have a complete blood count and a white cell differential during leukemia diagnosis and treatment. Together, these tests can reveal a lot about your blood. Before looking at the numbers, its useful to know a little bit about what each type of blood cell does.

  • White blood cells . White blood cells help fight infection. If your white blood cell count is low, your risk of infections grows.
  • Red blood cells . Red blood cells carry oxygen from the lungs to the rest of your body and return with carbon dioxide. If your red blood cell count is low, your tissues may lack oxygen, which can lead to fatigue, weakness, dizziness, and headaches.
  • Platelets. Platelets help your blood clot and control bleeding. If your platelet count is low, it can lead to excessive bleeding and easy bruising, even from minor cuts and bumps.

The CBC will also include measurements of:

  • Hemoglobin. This is a protein that red blood cells need to distribute oxygen.
  • Hematocrit. Hematocrit is the amount of blood taken up by red blood cells.

White blood cells make up only about 1 percent of your blood, according to the American Society of Hematology. But theyre an important part of your immune system. The white cell differential will measure the amount of each type of white cell, including granulocytes and agranulocytes.

Granulocytes include:

Agranulocytes include:

What Are The Risks Of Having Low White Blood Cell Count

The main risk of an abnormally low white blood cell count is how vulnerable it may make a person to infection. Without an adequate white blood cell response available to fight infection, the body is at greater risk that any infection may cause serious illness or death.Risk of infection is an even greater concern for a patient whose immunity is already compromised for some reason. One example of this is a low neutrophil count caused by the effect of cancer chemotherapy on the bone marrow. Where this is the case, treatments may need to be rescheduled to allow recovery of the white cell count and medications may be given to stimulate the growth of neutrophils to help maintain adequate levels.Since leukopenia is itself asymptomatic and chronic infection may go unrecognised because of failure to mount a symptomatic response, immunocompromised patients will usually have a periodic blood count to monitor their white cell count along with other regular health checks.

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How To Increase Wbc Levels Naturally

White Blood Cells are responsible for multiple body functions. So, maintaining healthy levels in the body is necessary, above anything else. If your WBC levels are chronically less, lifestyle and dietary changes can help proactively.

Following are some ways how to increase WBC count naturally in the blood.

Medicines The Following Medicines May Help Increase Wbc Counts They Can Also Help Lower The Risk Of Or Treat Infection

What Does My White Blood Cell Count Tell My Healthcare Team?

Colony-stimulating factors

Colony-stimulating factors are special medicines called growth factors. They stimulate, or help, the bone marrow to make white blood cells, red blood cells and platelets. Different types of growth factors stimulate the bone marrow to make different types of blood cells. Granulocyte colony-stimulating factors stimulate the bone marrow to make granulocytes. Granulocyte-macrophage colony-stimulating factors stimulate the bone marrow to make granulocytes and macrophages. Granulocytes and macrophages are types of WBCs.

With some chemotherapy drugs, G-CSFs or GM-CSFs may be given to stimulate the bone marrow to produce more WBCs. Filgrastim and pegfilgrastim are examples of G-CSFs. Sargramostim is a GM-CSF that may be used to help reduce the chance of developing infection and keep chemotherapy on schedule.

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Children More Than 2 Years Of Age And Adults

5,000 to 10,000/mm3

Higher-than-normal test results may indicate that you have an infection or sickness that your body is fighting. Lower-than-normal test results may indicate that your immune system is not operating as effectively as it should. This implies that even a little illness might result in major health complications.

What Are The Symptoms Of Low White Blood Cell Count

Abnormally low white blood cell levels could lead to higher risk of infection of any kind. A low white cell count itself does not directly produce any symptoms, but a patient who is immunocompromised as the result of significant leukopenia and then develops an infection may experience symptoms associated with that infection, such as fever, localized pain, fatigue, muscle ache, loss of appetite and general malaise.

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How Are Leukocytes Detected In Urine

A urinalysis is used to detect abnormalities to determine the presence of white blood cells in the urine. This analysis may be sufficient to detect any problems. Urine samples that are provided in laboratories can be analyzed in three ways:

  • Visual examination: Bioanalysts examine the appearance of urine. Cloudiness or an unusual odor may indicate an infection or other potential problem. The food a person eats can also affect their color.
  • Dipstick test: This test will detect any unusual substances in your urine. A thin plastic stick with chemical strips is placed in the urine to detect abnormalities. The chemicals on the strip will change color to indicate if certain substances are present.
  • Microscopic examination: drops of urine are examined under a microscope. Through this test, it can be seen if there are leukocytes present. If such is the case, it may signify an infection. Since leukocytes are cells, they can be counted by sedimentscopy, which analyzes the urinary sediment, which is also studied under the microscope. This test aims to detect and identify red
  • blood cells, leukocytes, epithelial cells , bacteria, yeast, parasites, mucus, sperm, and crystals.

White Blood Cell Count Test

What Does a Low White Blood Cell Count Mean? The Answer Isn

A white blood cell count is a test that measures the number of white blood cells in your body. It may also be called a leukocyte test. This test is often included with a complete blood count , which is commonly used to screen for different conditions that may affect your overall health.

The term white blood cell count is also used more generally to refer to the number of white blood cells in your body.

There are several types of white blood cells, and your blood usually contains a percentage of each type. Sometimes, however, your white blood cell count can fall or rise out of the healthy range. This may be due to an underlying condition or infection.

Keep reading to learn the normal white blood cell count range is and what high or low white blood cell counts may mean.

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What Are The Types Of White Blood Cells

There are five types of white blood cells:

  • Neutrophils: Help protect your body from infections by killing bacteria, fungi and foreign debris.
  • Lymphocytes: Consist of T cells, natural killer cells and B cells to protect against viral infections and produce proteins to help you fight infection .
  • Eosinophils: Identify and destroy parasites, cancer cells and assists basophils with your allergic response.
  • Basophils: Produces an allergic response like coughing, sneezing or a runny nose.
  • Monocytes: Defend against infection by cleaning up damaged cells.

Neutrophils In White Blood Cells

White blood cells make up about 1% of your body’s total blood cells and are an important part of your immune system. Neutrophils are the cells that respond first to any type of infection or wound. These make up 50% to 75% of your white blood cells. Neutrophils are made in your bone marrow. They live less than a day, so your bone marrow constantly makes new ones.

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When Should I Know The Results Of The Test

Results are usually ready within a few days. Sometimes it only takes 24 hours to get results. Your provider will contact you to explain the results and discuss next steps. If your blood cell counts are outside of the normal range, your provider may order follow-up tests.

What are the normal ranges for a complete blood count?

Hemoglobin normal range:

  • Male : 13.0 – 17.0 g/dL
  • Female : 11.5 – 15.5 g/dL

Hematocrit normal range:

White blood cell normal range:

  • Adult: 5,000-10,000/mL

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