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Carcinoembryonic Antigen, CSF - Saskatoon

Discipline

Biochemistry

Overview

Description

Ordering recommendation

  • CSF testing must be cleared by the Biochemist on call

Test ordering requirements

Clearance required 

  • For CSF sample contact RUH switchboard to have Biochemist on call paged

Specimen Information

Specimen types accepted

  • CSF

Specimen collection container

  • Preferred collection container: CSF - Sterile screw top tubes supplied in Spinal Tap Kit

Required volume

  • Optimal volume: 1.0 mL CSF
  • Minimum volume:  0.5 mL CSF

(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

  • 7 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

Results reporting

  • 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: February 26, 2026