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Specimen Requirements
Submit only one of the following specimens
Specimen Type: Whole Blood
Container/Tube: Light Blue Top (3.2% Sodium
Citrate)
Volume: 2.7mL Whole Blood (Tube must be full)
Collection Instructions: Send whole blood specimen
to laboratory immediately.
Specimen Type: Platelet Poor Plasma
Container/Tube: Light Blue Top (3.2% Sodium
Citrate)
Submission Container/Tube:
Plastic Vial
Minimum Volume: 1.2mL Plasma
Collection Instructions:
1. Light blue top tube must be properly filled with whole
blood.
2. Whole blood specimen should be double centrifuged and plasma
separated from cells within 1 hours of collection.
3. Freeze the plasma in well-closed plastic tube immediately.
Reference Interval
Clinical interpretive report will be provided.
Days and Times Performed
Monday through Sunday, TAT 1 day
Methodology
Viscosity-Based Clot Detection, Clauss Method, Immunoturbidimetric Assay
Service Code
12006
Update
Last updated 21/03/2016
Unacceptable Condition
| Haemolysis | Gross reject |
|---|---|
| Icterus | Gross reject |
| Lipaemic | Gross reject |
| Others | Clotted or insufficient reject |
Specimen Stability
**Preferred temperatures for storage prior to and during shipping to NUH**
| Specimen Type | Plasma |
|---|---|
| Ambient | 4 hours |
| Refrigerate | NA |
| Frozen | 14 days |
Testing Laboratory
National University Hospital
Haematology, 67725320
Profile Information
- Prothrombin Time
- Activated Partial Thromboplastin Time
- Thrombin Clotting Time
- Fibrinogen
- D-Dimer
Reflex Tests
- APTT Mixing Study if APTT is > 50.0 seconds
Alias
DIC