Blood Sciences Test


Primary Immune Deficiency screen

Specimen

EDTA Blood

Special Instructions

A full blood count must also be requested

Factors affecting results

Clotted samples cannot be tested

Reference Range

LYMPHOCYTE SUB-SET NORMAL RANGES

In Cells/ul

Age

 

CD3 CD4 CD8 CD19 NK CD4/8 ratio

Birth –

1 week

600 – 5000 400 – 3500 200 – 1900 40 – 1100 100 – 1900 0.8 – 1.8
1 week –  9 months 2300 -7000 1400 -5300 400 – 2200 600 – 3000 100 – 1400 1.5 – 2.9
9 months -2 years 1400 -8000 900 – 5500 400 – 2300 600 – 3100 100 – 1400 1.5 – 2.9

2 year-

10 years

700 – 4500 300 – 2400 300 – 1800 200 – 2100 90 – 1000 1.0 – 600
10 years -16 years 800 – 3500 400 – 2100 200 – 1200 200 – 600 70 – 1200 1.1 – 1.4
16 years -50 years 800 – 2600 450 – 1700 250 – 1100 70 – 650 90 – 600 0.8 – 3.3
50 years -110 years 550 – 2400 320 – 1500 150 – 1200 60 – 500 120 – 660 0.7 – 4.9

Test Usage

To provide diagnostic information for the investigation of primary immune deficiency disorders.

Turnaround time

2 days

Availability

In House

 Clinical Advice

Clinical advice is available from the Immunology Medical Team at Derriford Hospital

T: 01752 431675

E: plh-tr.eden@nhs.net

Please note this assay is not UKAS accredited

 

Specimen Labelling Procedure