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HelpTest Code LYMS Flow Cytometry-Lymphocyte Subsets
Specimen Requirements
Specimen Type: Whole Blood
Container/Tube: Lavender Top (EDTA)
Volume: 3mL
Minimum Volume: 1.0mL whole blood
Reference Interval
The reference interval will be provided on the report.
Tests included in the panels:
Lymphocytes, Abs (cells/uL)
CD3, T Lymphoytes (%)
CD3, T Lymphoytes Abs (cells/uL)
CD4 T Helper Cells (%)
CD4 T Helper Cells Abs (cells/uL)
CD8 T Suppressor Cells (%)
CD8 T Suppressor Cells Abs (cells/uL)
CD19, B Cells (%)
CD19, B Cells Abs (cells/uL)
NK Cells (%)
NK Cells Abs (cells/uL)
CD4/CD8 Ratio
Days and Times Performed
Tuesday and Thursday ONLY, TAT 5 working days.
Specimens are acceptable from Monday to Thursday.
Specimen must be RECEIVED by Laboratory before 11.00 AM on Tuesdays and Thursdays.
Do not send specimens on Fridays, Saturdays, Sundays, Public Holidays and after 11.00 AM on Tuesdays and Thursdays.
Service Code
12675
Update
Last updated 22/10/2024
Added new test info
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemia | NA |
| Others | Clotted or insufficient reject |
Specimen Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Whole Blood |
|---|---|
| Ambient: | 48 hours |
| Refrigerate: | NA |
| Frozen: | NA |
Testing Laboratory
National University Hospital
Flow Cytometry, 67724016
Useful For
Clinical indication: For monitoring after immunosuppression, immune reconstitution following transplantation and screening for primary immunodeficiency.
This assay is designed to enumerate percent and absolute cell counts of lymphocyte subsets CD19 B-cells, CD3 T-cells (total, CD4, CD8) and CD56/CD16 NK-cells in whole blood.
Test Info
This laboratory test has undergone in-house evaluation with appropriate quality assurance and control measures in line with laboratory best practice and accreditation requirements.
Reagent(s) used in this test is/are ordered through HSA’s Special Access Route, which provides interim access without full registration.