top of page

Essential4Health

Get Healthy ~ Stay Healthy

Essential4Health

Get Healthy ~ Stay Healthy

lab-scientists-blood-urine-test-analysis

White Blood Cell Count

examining-blood-sample-with-microscope

WBC

Description

"White Blood Cell Count" (WBC) test measures the number of white blood cells in your blood to evaluate immune system activity. It’s frequently used to detect infections, inflammation, or bone marrow conditions. Elevated WBC may point to infection or stress, while low levels might suggest immune suppression or chronic illness. Doctors use this test to investigate symptoms like fever or fatigue and to track recovery. Regular monitoring helps manage immune health and supports early intervention when abnormalities arise.

"White Blood Cell Count" (WBC) test measures the number of white blood cells in your blood to evaluate immune system activity. It’s frequently used to detect infections, inflammation, or bone marrow conditions. Elevated WBC may point to infection or stress, while low levels might suggest immune suppression or chronic illness. Doctors use this test to investigate symptoms like fever or fatigue and to track recovery. Regular monitoring helps manage immune health and supports early intervention when abnormalities arise.

Category

Blood Cells

Procedure

Invasive

Sample Type

Blood – Whole Blood

Units

Thousand Per Microliter | Billion Per Liter

Procedure Category

Blood Draw

Test Group

Hematology Group, Female Health Group, Male Health Group, Gastrointestinal System Group, Immune System Group, Blood Count Basic Group

Test Group Description

Blood Count Basic Group: This group includes essential tests for evaluating blood cell counts, providing foundational information for assessing overall blood health, and detecting potential abnormalities. Female Health Group: A comprehensive array of tests provides insights into various aspects of female health and wellness, aiding in the evaluation and management of overall health for females. Gastrointestinal Health Group: This group assesses different facets of gastrointestinal function and health, providing insights into digestive well-being and related conditions. Immune System Group: By evaluating various aspects of immune system function and health, this group offers insights into immune responses and related health considerations. Male Health Group: A comprehensive array of tests provides insights into various aspects of male health and wellness, aiding in the evaluation and management of overall health for men. Hematology Group: Tests within this group focus on evaluating various aspects of blood health and function. These assessments provide insights into red blood cells, white blood cells, platelets, and other components of the blood.

Optimal Range

For All Individuals:

  • Conventional Unit: 4,000–7,000 ×10³/µL

  • SI Unit: 4.00–7.00 ×10⁹/L

Normal Range

For All Individuals:

  • Conventional Unit: 3,400–10,800 ×10³/µL

  • SI Unit: 3.4–10.8 ×10⁹/L

Results That Differ From The Norm (Direct and Indirect Causes)

Increased levels may indicate:


  • Anaphylaxis (Severe allergic reaction)

  • Asthma exacerbations (Worsening of asthma symptoms)

  • Bacterial infections

  • Burns

  • Chronic kidney disease

  • Chronic obstructive pulmonary disease (Chronic lung condition)

  • Crohn's disease (Inflammatory bowel disease)

  • ...

Key Reasons For Testing

  • Infection Detection: Identifies infections or inflammation by analyzing elevated WBC counts.

  • Immune System Assessment: Evaluates immune responses to infections or other triggers.

  • Monitoring Disease Progression: Tracks changes in WBC count to monitor disease status or treatment response.

  • Diagnosis of Blood Disorders: Detects abnormalities linked to leukemia, lymphoma, or other hematologic conditions.

  • Postoperative Monitoring: Identifies postoperative infections or complications for timely intervention.

  • Routine Health Screening: Detects underlying health issues through routine blood tests.

Health Status Conditions It May Be Used To Assess

Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.

Some Prominent Medical Labs That May Offer This Test

Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.

References

Important Note

Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.


Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.

Disclaimer

This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.


Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.

[1] Bain BJ, Bates I, Laffan MA. Dacie and Lewis Practical Haematology. 12th ed. Philadelphia, PA: Elsevier; 2017:22-28.

[2] Riley LK, Rupert J. Evaluation of Patients with Leukocytosis. Am Fam Physician. 2015;92(11):1004-1011.

[3] Boxer LA. How to Approach Neutropenia. Hematology Am Soc Hematol Educ Program. 2012;2012(1):174-182.

[4] Mantovani A, Cassatella MA, Costantini C, et al. Neutrophils in the Activation and Regulation of Innate and Adaptive Immunity. Nat Rev Immunol. 2011;11(8):519-531.

[5] de Jager CP, van Wijk PT, Mathoera RB, et al. Lymphocytopenia and Neutrophil-Lymphocyte Count Ratio Predict Bacteremia Better Than Conventional Infection Markers in an Emergency Care Unit. Crit Care. 2010;14(5).

[6] Briggs C, Kunka S, Fujimoto H, et al. Evaluation of an Automated Hematology Analyzer for White Blood Cell Differential Counts. Am J Clin Pathol. 2008;129(5):874-881.

[7] Nagai Y, Garrett KP, Ohta S, et al. Toll-Like Receptors on Hematopoietic Progenitor Cells Stimulate Innate Immune System Replenishment. Immunity. 2006;24(6):801-812.

[8] Danese E, Montagnana M. Neutrophil to Lymphocyte Ratio: An Emerging Marker in Clinical Medicine. Crit Rev Clin Lab Sci. 2017;54(5):313-326.

[9] Parham P. The Immune System. 4th ed. New York, NY: Garland Science; 2014:112-115.

[10] Chabot-Richards DS, George TI. Leukocytosis: Basics of Clinical Assessment. Clin Lab Med. 2015;35(1):1-15.

[11] Riley RS, Hogan TF, Pavot DR, et al. A Standardized Approach to White Blood Cell Differential Reporting. Lab Med. 2016;47(2):123-132.

[12] Kim DS, Park JY, Kim JH. Clinical Utility of White Blood Cell Count and Neutrophil-to-Lymphocyte Ratio in Evaluating Systemic Inflammation. J Clin Med. 2019;8(6):885.

[13] Singer M, Deutschman CS, Seymour CW, et al. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA. 2016;315(8):801-810.

If You Found This Test Helpful, You Might Also Like..

bottom of page