Skip to Main Content Go to Sitemap

Autoimmune Lymphoproliferative Syndrome (ALPS)

Alternate test name
  • Double negative T cells for CD4 and CD8, but positive for TCR alpha/beta
  • Double negative T cells
Lab area
Method and equipment
  • BD FACSCanto
Expected turn-around time
Three Working Days
Specimen type
  • Peripheral Blood
Specimen requirements
  • 2mL EDTA 
  • Minimum 0.5 mL Paediatric tube (EDTA)
Storage and transportation
  • Room temperature
Special requirements
  • Flow Cytometry Laboratory only accepts samples Monday to Thursday from 8am to 4pm, Fridays 8am to 12pm excluding Holidays and Weekends.
  • Specimen stability in Flow testing is only acceptable within 24 hours of collection.
  • A complete Blood Count (CBC) and Differential are required.


Shipping information
The Hospital for Sick Children
Rapid Response Laboratory
555 University Avenue, Room 3642
Toronto, ON
M5G 1X8
Phone: 416-813-7200
Toll Free: 1-855-381-3212
Hours: 7 days/week, 24 hours/day
Back to Top