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Cancer Antigen 125, Blood - Saskatoon

Discipline

Biochemistry

Overview

Alias

  • CA125

Specimen Information

Specimen types accepted

  • Serum

Specimen collection container

  • Preferred collection container: Blood – Gold (gel)

  • Alternative collection container: Blood – Red (no gel)

Collection procedure

  • Biotin therapy: No sample should be taken until 8 hours after the last biotin administration    

Required volume

  • Optimal volume: 4.5 mL full collection tube

  • Minimum volume:  1.0 mL

(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)

Transport and stability

  • 5 days at 2-8°C

Rejection criteria

Performance

Methodology

  • Electrochemiluminescence immunoassay

Days/times performed

Availability
  • 24 hours a day
Testing Site
  • RUH

Maximum laboratory time

  • In Hospital reported within 2 hours

  • Community urgent and intra hospital reported within 4 hours
  • Community routine reported within 24 hours

Specimen retention time

  • 3 days

Last Updated: October 8, 2024