Lymphocytes

A blood differential test measures the amount of each type of white blood cell (WBC) that you have in your blood. This test can help diagnose or monitor an infection or condition that affects your immune system.

A blood differential test is often part of a routine checkup. Because the five types of white blood cell do different jobs, measuring them separately can give your health care provider important information about your health.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

1.25×10⁹/L →normal
Normal
1.2–4.95 ×10⁹/L
Female · ≤ 14 d
1.75–8 ×10⁹/L
Female · 1 mo – 2 mo
2.29–9.14 ×10⁹/L
Female · 12 y – 17 y
1–3.2 ×10⁹/L
Female · 15 d – 28 d
2.42–8.2 ×10⁹/L
Female · 2 mo – 5 mo
2.14–8.99 ×10⁹/L
Female · 2 y – 3 y
1.25–5.77 ×10⁹/L
Female · 3 y – 5 y
1.6–5.3 ×10⁹/L
Female · 6 mo – 2 y
1.52–8.09 ×10⁹/L
Female · 6 y – 11 y
1.4–3.9 ×10⁹/L
Female
0.95–3.07 ×10⁹/L
Male · ≤ 14 d
2.07–7.53 ×10⁹/L
Male · 1 mo – 2 mo
2.47–7.95 ×10⁹/L
Male · 12 y – 17 y
1–3.2 ×10⁹/L
Male · 15 d – 28 d
2.11–8.38 ×10⁹/L
Male · 2 mo – 5 mo
2.45–8.89 ×10⁹/L
Male · 2 y – 3 y
1.13–5.52 ×10⁹/L
Male · 3 y – 5 y
1.6–5.3 ×10⁹/L
Male · 6 mo – 2 y
1.56–7.83 ×10⁹/L
Male · 6 y – 11 y
1.4–3.9 ×10⁹/L
Male
0.95–3.07 ×10⁹/L

Ranges from American Board of Internal Medicine (Laboratory Test Reference Ranges), Mayo Clinic Laboratories (Test Catalog).

All 21 source ranges
SourceSexAgeRange
American Board of Internal Medicine (Laboratory Test Reference Ranges) All all ages 1.2–4.95 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female all ages 0.95–3.07 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female ≤ 14 d 1.75–8 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 15 d – 28 d 2.42–8.2 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 1 mo – 2 mo 2.29–9.14 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 2 mo – 5 mo 2.14–8.99 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 6 mo – 2 y 1.52–8.09 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 2 y – 3 y 1.25–5.77 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 3 y – 5 y 1.6–5.3 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 6 y – 11 y 1.4–3.9 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Female 12 y – 17 y 1–3.2 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male all ages 0.95–3.07 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male ≤ 14 d 2.07–7.53 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 15 d – 28 d 2.11–8.38 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 1 mo – 2 mo 2.47–7.95 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 2 mo – 5 mo 2.45–8.89 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 6 mo – 2 y 1.56–7.83 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 2 y – 3 y 1.13–5.52 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 3 y – 5 y 1.6–5.3 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 6 y – 11 y 1.4–3.9 ×10⁹/L
Mayo Clinic Laboratories (Test Catalog) Male 12 y – 17 y 1–3.2 ×10⁹/L

What an abnormal result can be associated with

A high result
Increased total lymphocyte count
A low result
Decreased total lymphocyte count

Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.

Details

Sample
Whole blood · LOINC
Part of
T-cell helper (CD4) subset panel
Code
LOINC 731-0 · ×10⁹/L
Also known as
Lympho, Lymphocyte, Lymp, absolutes, Cnt