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Doctor's Assessment Included

Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.

Hematology

Leukocyte Differential

A leukocyte differential test measures the relative proportions of different types of white blood cells in your blood. It provides a detailed breakdown of your immune cell populations, offering valuable insight into your immune system's function.

What It Measures

This test counts and classifies the five main types of white blood cells: neutrophils, lymphocytes, monocytes, eosinophils, and basophils. Each type plays a distinct role in immune defence, and their relative proportions can indicate specific types of infections, allergic responses, or blood disorders.

Why It Matters

The differential count helps healthcare providers pinpoint the nature of immune responses. For example, elevated neutrophils may suggest a bacterial infection, while increased eosinophils can indicate allergies or parasitic infections. It is a critical tool for diagnosing and monitoring many conditions.

When to Test

A leukocyte differential is typically part of a complete blood count (CBC) and may be ordered during routine health screening, when infection or immune disorder is suspected, or to monitor the effects of treatments such as chemotherapy.

Symptoms

Low Levels

Low counts of specific white blood cell types may be associated with increased susceptibility to infections, recurrent illness, fatigue, and slow wound healing.

High Levels

Elevated counts of specific white blood cell types may be associated with active infection, allergic reactions, inflammatory conditions, or in some cases blood disorders.

Lifestyle Tips

Support your immune system with a balanced diet rich in fruits, vegetables, and whole grains. Get adequate sleep, manage stress, exercise regularly, and maintain good hygiene. Avoid smoking and limit alcohol consumption to support overall immune health.

Frequently Asked Questions

What do the different types of white blood cells do?
Neutrophils fight bacterial infections, lymphocytes target viruses and coordinate immune responses, monocytes clean up damaged cells and pathogens, eosinophils respond to parasites and allergies, and basophils play a role in allergic and inflammatory reactions.
Can stress affect my white blood cell differential?
Yes, physical or emotional stress can temporarily alter white blood cell counts and their proportions. Acute stress may increase neutrophils, while chronic stress can affect overall immune balance. Results should be interpreted in context by a healthcare professional.

Test Products

This marker is included in the following test panels.

InsideTracker

A 36-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Magnesium (Intracellular) Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Complete Blood Count (CBC)
€399,-

Whoop

A 44-biomarker comprehensive health panel inspired by WHOOP Advanced Labs — a deep look at metabolism, cardiovascular risk, hormones, liver, kidney and inflammation.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol Cortisol DHEA-S Estradiol (E2) Free Testosterone FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Total Testosterone Bicarbonate Calcium Chloride Ferritin Iron (Serum) Magnesium Potassium Sodium Transferrin CRP (C-Reactive Protein) Homocysteine Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Omega-3 Index Total Cholesterol Albumin HOMA-IR ALP (Alkaline Phosphatase) AST (Aspartate Aminotransferase) Bilirubin (Total) Total Protein Urea (BUN) Creatinine Vitamin D (25-OH) eGFR (Estimated Glomerular Filtration Rate) Insulin (Fasting) Leukocyte Differential Transferrin Saturation Lipoprotein(a) Triglycerides Complete Blood Count (CBC)
€499,-