WBC Blood Test For Immune System Health

WBC Blood Test For Immune System Health

WBC (White Blood Count) Test is a diagnostic test that measures the number of white blood cells in a person's blood to assess their immune system health.


WBC Blood Test 

Here are the basic details for WBC Blood Test.

Also Known As White blood Count Test, WBC Blood Test, White Blood Cell count test, Leukocytes Count test, WBC count test
Type Blood Test
Check White Blood Cells in Blood
Sample Type Blood
Preparation No Special Preparation Required
Fasting No
Gender All
Age-Group 18+
Normal Value 4,500-11,000 cells/μL
Reporting Time 1 - 2 hours
Cost 150 - 450* INR

*Price range may vary as per location, lab type, and procedure of lab test.


WBC Blood Test Full Form

Full form of WBC Blood Test is White blood Count Test.


WBC Blood Test Means

WBC stands for white blood cell, which is a type of blood cell that is responsible for fighting infections and diseases in the body.

  • The WBC blood test measures the number of white blood cells in the blood, which can help doctors diagnose various medical conditions.
  • A high WBC count can indicate the presence of an infection, inflammation, or other medical condition, while a low WBC count can indicate a weakened immune system or other medical issue.
  • The WBC blood test is often used in combination with other tests, such as a differential blood count, to get a complete picture of a patient's health.
  • The WBC blood test is a routine part of many medical checkups and is often used to monitor patients who are undergoing treatment for a medical condition.
  • The WBC blood test is a simple and quick procedure that involves taking a small sample of blood from a vein in the arm.
  • Results from the WBC blood test are usually available within a few hours or days and are interpreted by a medical professional.

Interesting Facts About WBC (White Blood Count)

  • White blood cells, also known as leukocytes, are an essential part of the immune system and play a crucial role in defending the body against infections and diseases.
  • The average adult has approximately 4,500 to 11,000 white blood cells per microliter of blood.


WBC Blood Test Purpose

Here is the basic purpose of WBC Blood Test.

  • To evaluate overall health and immune system function
  • To diagnose infections and inflammatory conditions
  • To monitor response to treatment for infections or other medical conditions
  • To detect and monitor bone marrow disorders
  • To assess the risk of certain types of cancer
  • To monitor medication side effects that can affect white blood cell counts
  • To screen for allergies and autoimmune disorders


WBC Blood Test: Price, Normal Range, Result, Purpose, Meaning and Interpretation - Drlogy Test


WBC Blood Test Preparation

Here are some points for WBC blood test preparation:


Before Test

  • Follow any instructions provided by your healthcare provider, such as fasting or avoiding certain medications.
  • Wear loose, comfortable clothing that allows the healthcare provider to access your arm easily.


During Test

  • A healthcare provider will clean the area around your arm and insert a needle to collect a sample of your blood.
  • You may feel a slight pinch or discomfort during the procedure.


After Test

  • You can resume your normal activities immediately following the test.
  • If you experience any unusual symptoms or side effects, contact your healthcare provider.


Prepare for a WBC blood test by following instructions, wearing comfortable clothing, and contacting your healthcare provider for any concerns afterward.


WBC Blood Test Procedure

Here are the steps involved in the WBC blood test procedure:

  • The healthcare provider will tie an elastic band around your upper arm to make the veins visible and swell with blood.
  • They will clean the injection site with an antiseptic solution and insert a needle into a vein in your arm.
  • They will collect a small blood sample in a vial or tube.
  • After the blood is collected, they will remove the needle and apply pressure on the injection site to stop bleeding.
  • A bandage or cotton ball will be placed on the site to prevent further bleeding.

Note: The procedure may vary depending on the healthcare provider or the lab conducting the test.


WBC Blood Test Result

  • A high WBC count may indicate an infection or inflammation in the body, while a low count may suggest a weakened immune system or certain medical conditions.
  • However, abnormal WBC results must be interpreted in the context of other symptoms and medical tests, and a healthcare provider should be consulted for proper diagnosis and treatment.


WBC Blood Test  Report

WBC Blood Test Report Format - Drlogy Lab Report

WBC Blood Test Report PDF


WBC Test Normal Report

Total Leucocyte Count Tlc WBC Normal Test Report Format Example Sample Template - Drlogy Pathology Lab Report Format

WBC Normal Test Report PDF Format

WBC Test Normal Result Report PDF


WBC Test Abnormal Report

Total Leucocyte Count Tlc WBC Abnormal Test Report Format Example Sample Template - Drlogy Pathology Lab Report Format

WBC Abnormal Test Report PDF Format

WBC Test Abnormal Result Report PDF


WBC Blood Test Normal Range

Here is the normal range for WBC (White Blood Cell) count:

WBC Count Interpretation
4,500-11,000 cells/μL Normal range


WBC Blood Test Interpretation

Here's the WBC Blood Test interpretation with cells/μL:

WBC Count Interpretation
< 4,500 cells/μL Leukopenia (low WBC count)
4,500-11,000 cells/μL Normal range
> 11,000 cells/μL Leukocytosis (high WBC count)
> 100,000 cells/μL Leukemoid reaction (very high WBC count, usually > 50,000)

Note: The normal range may vary slightly depending on the laboratory and the individual's age, sex, and medical history.


WBC Blood Test High Levels

Here's a basic WBC Blood Test high levels of causes with detailed information.

High WBC Count Causes Description
Infection Bacterial, viral, or parasitic infections can cause an increase in WBC count
Inflammation Chronic inflammatory diseases such as rheumatoid arthritis or inflammatory bowel disease can raise WBC count
Leukemia A type of blood cancer that begins in the bone marrow and leads to the overproduction of abnormal WBCs
Medications Certain medications such as corticosteroids or antibiotics can increase the WBC count
Stress Emotional or physical stress can cause a temporary increase in the WBC count
Smoking Smoking can cause a rise in the WBC count
Allergies Allergic reactions can cause a temporary increase in WBC count
Trauma Physical trauma or injury can cause a temporary increase in the WBC count
Pregnancy During pregnancy, it's common to have a slightly higher WBC count

Note: It's important to consult a doctor for proper diagnosis and treatment of high WBC count.


WBC Blood Test Low Levels

Here's a basic WBC Blood Test low levels causes with detailed information.

Low WBC count causes Explanation
Viral infections Viral infections can suppress the bone marrow, resulting in a decrease in WBC production.
Chemotherapy or radiation therapy These treatments can damage the bone marrow and reduce WBC production.
Autoimmune disorders Autoimmune disorders can cause the body to attack and destroy its own WBCs.
Bone marrow disorders Bone marrow disorders, such as aplastic anemia, can reduce WBC production.
HIV/AIDS HIV/AIDS can attack and destroy WBCs, particularly CD4 cells.
Certain medications Certain medications, such as antibiotics, antihistamines, and diuretics, can reduce WBC production.


High WBC levels indicate infection, inflammation, or other medical conditions, while low levels can be caused by bone marrow disorders, autoimmune diseases, or certain medications.


Specimen Requirments For WBC Blood Test

Here are the specimen requirements for the WBC Blood Test.

Specimen Whole Blood
Volume 0.5 ml
Container Red-top tube or gel-barrier tube.


WBC Blood Test is Safe?

  • WBC blood test is generally safe and considered a routine test that does not involve any risks or complications.
  • However, as with any blood test, there may be slight bruising, bleeding, or infection at the needle insertion site.


When Do You Get WBC Blood Test Results?

  • The results of a WBC blood test are typically available within 1 -2 hours or a day.
  • Your healthcare provider will contact you with the results and discuss what they mean for your health.


WBC Blood Test Limitation

Here are some possible limitations of the WBC Blood Test.

  • Limited ability to pinpoint the specific cause of abnormal WBC count.
  • Lack of specificity in identifying the exact type of infection or inflammation.
  • Interference from certain medications or therapies.
  • WBC normal range may vary based on age, sex, and other factors.
  • Cannot provide a complete picture of immune system function.


WBC Blood Test Risk Factors

Here is the potential risk factor of the WBC Blood Test.

  • Infection or inflammation in the body.
  • Certain medications or treatments, such as chemotherapy.
  • Autoimmune disorders or diseases affecting the immune system.
  • Bone marrow disorders or malignancies.


Doctor Recommendations After WBC Blood Test Result

Here are Doctor recommendations or consult a specialist after WBC Blood Test.

WBC Result Doctor to Visit Reason to Visit
High Hematologist Potential infection or leukemia
Normal General Practitioner Routine check or follow-up
Low Hematologist Possible immune system disorder


WBC Blood Test Price

Here are the estimated WBC Blood Test Price in India with different top cities:

City Price Range (INR)*
Mumbai 150 - 450
New Delhi 200 - 450
Bangalore 200 - 400
Hyderabad 200 - 450
Kolkata 200 - 450
Pune 150 - 400
Lucknow 150 - 400
Noida 200 - 400
Surat 150 - 400
Gurugram 200 - 400
Patna 150 - 400
Chennai 150 - 450
Jaipur 150 - 400
Ahmedabad 150 - 450

*Prices are approximate and vary depending on a specific laboratory or healthcare facility.



In summary, the WBC blood test measures the number of white blood cells in the body and is used to diagnose infections, inflammation, and immune system disorders. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.



  • White Blood Cell Differential - Wikipedia [1].
  • White Blood Cell NIH [2].



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WBC Blood Test FAQ

What is a WBC Blood Test?

A WBC (White Blood Cell) Blood Test is a laboratory test that measures the number of white blood cells in the bloodstream.

  • White blood cells are an essential part of the immune system and help protect the body against infections and diseases.
  • The test provides valuable information about the body's immune response and helps diagnose various conditions, including infections, inflammation, and certain blood disorders.

Why is a WBC Blood Test done?

A WBC Blood Test is done to assess the overall white blood cell count in the body.

  • It is used to evaluate the immune system's response to infections, monitor the progression of certain diseases, or detect abnormalities in blood cell production.
  • The test can help diagnose conditions such as bacterial or viral infections, leukemia, autoimmune disorders, or allergic reactions.

How is a WBC Blood Test performed?

A WBC Blood Test involves drawing a blood sample, typically from a vein in the arm.

  • The collected blood sample is sent to a laboratory for analysis.
  • In the laboratory, the number and types of white blood cells are counted using automated or manual methods to determine the total WBC count and identify any abnormalities.

What do the results of a WBC Blood Test mean?

The results of a WBC Blood Test provide information about the total number and relative proportions of different types of white blood cells.

  • Abnormal results may indicate various conditions, such as infection (increased WBC count), bone marrow disorders (decreased or abnormal WBC count), or immune system disorders.
  • However, further evaluation and interpretation by a healthcare professional are necessary to determine the underlying cause and appropriate treatment plan based on the specific results.








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