Immune System Blood Test
Apr 10, 2026
Immune System Blood Test
An immune system blood test measures white blood cells (neutrophils, lymphocytes, monocytes), immunoglobulins (IgG, IgA, IgM), and inflammatory markers to assess how well your immune defences are functioning—identifying immune deficiencies that cause frequent infections, autoimmune overactivity, or underlying conditions affecting immunity. Your immune system is complex, and blood tests provide a window into its function.
At Blood Test London, immune system testing costs from £295 with results in 2-3 days. A doctor always reviews every result.
What Immune Tests Measure
White Blood Cells (Differential)
Cell Type | Role | Normal Range |
|---|---|---|
Neutrophils | Fight bacteria | 2.0-7.5 ×10⁹/L |
Lymphocytes | Fight viruses, immunity | 1.0-4.0 ×10⁹/L |
Monocytes | Clean up, immunity | 0.2-0.8 ×10⁹/L |
Eosinophils | Parasites, allergies | 0.04-0.4 ×10⁹/L |
Basophils | Allergic response | 0.01-0.1 ×10⁹/L |
Immunoglobulins
Type | Role |
|---|---|
IgG | Main antibody, long-term immunity |
IgA | Mucosal immunity (gut, lungs) |
IgM | First response to new infections |
Inflammatory Markers
CRP
ESR
Signs of Immune Problems
Possible Deficiency
Frequent infections
Infections that don't clear
Recurrent chest infections
Slow wound healing
Persistent fatigue
Possible Overactivity
Autoimmune symptoms
Chronic inflammation
Unexplained joint pain
Skin rashes
Our Immune Testing Options
Basic Immune Screen - £295
Full blood count with differential
CRP
Doctor review
Comprehensive Immune Panel - £395
Full blood count
Immunoglobulins (IgG, IgA, IgM)
CRP, ESR
Vitamin D
Detailed interpretation
Advanced Immune Assessment - £545
Complete immune panel
Complement (C3, C4)
Zinc, B12
Extended consultation
Book Your Test
Price: From £295
Results: 2-3 days
Doctor review: A doctor always reviews every result
Book via WhatsApp | Phone: 020 3951 3429
Blood Test London by The Wellness. Immune system testing from £295. A doctor always reviews every result.