Testing Laboratories
Waitematā | Northshore HospitalWaitematā | Waitakere Hospital
Department
Chemical Pathology
Delphic Registration Code (Alpha Code)
CRYF
Test Code (Numeric Code)
0981
Laboratory Handling
Phlebotomy
See "Pre-testing Requirements"
Separating
DO NOT use the centrifuge to separate the sample.
Laboratory
Give a copy of request form to Biochemistry
Test Adds Requirement
Cannot be test added
Sample Stability
N/A
Synonyms
Cryofibrinogen
Turnaround Time
5 days
Available from 08:00am to 04:00pm, 7 days a week
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- EDTA (Lavender Cap)
- Plain (Red Top)
Preferred Sample Volume (ml)
16
Minimum Sample Volume (ml)
10
No of Samples Required
4
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- EDTA (Lavender Cap)
- Plain (Red Top)
Minimum Sample Volume (ml)
8
Pre-testing Requirements
Collection instructions:
1. Get a heat pad from phleb outpatient room
2. Activate the heat pad. Promptly placing it upright and long ways along with side wall of the flask
3. Place the inner lid and outer lid on the flask and seal tightly
4. Record the heat pad activation time on request form
5. Pre-heat the sample tubes before collection
6. Send samples in flask to the lab via Lamson or hand delivery within 30 mins after collection
Additional Specimen Information
2x 4mL Plain (Red) AND 2x 4mL EDTA (Purple) required for this test.
Laboratory instruction:
1. Check patient’s details on samples against the request form AND the heat pad activation time
Recollect sample when
– unlabelled/mismatch sample
- no heat pad activation time
- sample arrived in the lab 90mins AFTER heat pad activation time
2. Take out all tubes and place them in Biochemistry heat block for separation
3. Give a copy of request form to Biochemistry
4. Leave the gel pack ins ide the flask and return the flask to phlebotomy via Lamson (310 NSH/ 700 WTH)
Last updated: 09/06/2026