Sorted By Test Name - Mayo Medical Laboratories

12-23 months: 2,100-6,200 cells/mcL*
2-5 years: 1,400-3,700 cells/mcL*
6-11 years: 1,200-2,600 cells/mcL*
12-17 years: 1,000-2,200 cells/mcL*
> or =18 years: 582-1,992 cells/mcL
Helper Cells (CD4)
0-2 months: 1,600-4,000 cells/mcL*
3-5 months: 1,800-4,000 cells/mcL*
6-11 months: 1,400-4,300 cells/mcL*
12-23 months: 1,300-3,400 cells/mcL*
2-5 years: 700-2,200 cells/mcL*
6-11 years: 650-1,500 cells/mcL*
12-17 years: 530-1,300 cells/mcL*
> or =18 years: 401-1,532 cells/mcL
Suppressor Cells (CD8)
0-2 months: 560-1,700 cells/mcL*
3-5 months: 590-1,600 cells/mcL*
6-11 months: 500-1,700 cells/mcL*
12-23 months: 620-2,000 cells/mcL*
2-5 years: 490-1,300 cells/mcL*
6-11 years: 370-1,100 cells/mcL*
12-17 years: 330-920 cells/mcL*
> or =18 years: 152-838 cells/mcL
*Shearer WT, Rosenblatt HM, Gelman RS, et al: Lymphocyte subsets in healthy children from birth
through 18 years of age: The Pediatric AIDS Clinical Trials Group P1009 study. J Allergy Clin Immunol
2003;112(5):973-980
TREC, Immune Reconstitution
Pediatric
0-2 months: not established
6 months-18 years: >801 copies per million peripheral blood mononuclear cells
Adults
19-44 years: >227 copies per million CD3 T cells
45-54 years: >111 copies per million CD3 T cells
> or =55 years: >78 copies per million CD3 T cells
TREC results are expressed as copies per million CD3 T cells for adult specimens or per million
peripheral blood mononuclear cells for pediatric specimens.
CD4 T-CELL RECENT TYMIC EMIGRANTS (RTE)
CD4 Absolute
Males
1 month-17 years: 153-1,745 cells/mcL
18-70 years: 290-1,175 cells/mcL
Females
1 month-17 years: 582-1,630 cells/mcL
18-70 years: 457-1,766 cells/mcL
Reference values have not been established for patients that are 70 years of age.
CD4 RTE %
Males
1 month-17 years: 19.4-60.9%
18-25 years: 6.4-51.0%
26-55 years: 6.4-41.7%
56-70 years: 6.4-27.7%
Females
1 month-17 years: 25.8-68.0%
18-25 years: 6.4-51.0%
Current as of January 4, 2013 7:15 pm CST 800-533-1710 or 507-266-5700 or MayoMedicalLaboratories.com Page 1740