Vitreous Humour – Chemistry

Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

VITF

Test Code (Numeric Code)

1166

Laboratory Handling

Registration

Forward specimen to Automation. Do not aliquot. Register sample under the code VITF put in bag and hand to Automation staff.

Sample Stability

-

Synonyms

Vitreous Humour

Turnaround Time

1 day

Specimen Type

  • Vitreous Fluid

Specimen Requirements

Tube/Container Type:

Preferred
  • N/A
Acceptable
  • N/A

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • N/A
Acceptable
  • N/A

Pre-testing Requirements

Vitreous humour is a preferred to blood for most post-mortem biochemistry, since it is thought to be far less susceptible to autolytic change, is less likely to be subject to post-mortem contamination by diffusion of drugs or other poisons that may be present.

Additional Specimen Information

Specimen Collection
No preservative or anticoagulants to be used, collect sample in a plain container. Ideally from both eyes and aspiration must be gentle to avoid contamination with retinal fragments.

Vitreous humour is viscous, hence requires pre-treatment. At LabPLUS, all vitreous humour samples are analysed following heat treatment (100 o C for 5 minutes)(1). Heat treated samples are not suitable for enzyme and protein analysis. 2 mL Collect

Last updated: 31/03/2026