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Laboratory Code
LAB5065
Specimen Requirements
Submit only one of the following specimens
Specimen Type: Whole Blood
Container/Tube: Light Blue Top (3.2% Sodium Citrate)
Volume: 2.7 mL 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: 1.2 mL 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 hr of collection.
3. Freeze the plasma in well-closed plastic tube immediately.
Specimen Stability
| Specimen Type | Plasma |
|---|---|
| Ambient | 4 hours |
| Refrigerate | Not available |
| Frozen | 14 days (preferred) |
Panel Information
Panel includes the following tests:
Methodology
Viscosity-Based Clot Detection, Clauss Method, Immunoturbidimetric Assay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | Gross reject |
|---|---|
| Icterus | Gross reject |
| Lipaemia | Gross reject |
| Others: Clotted or insufficient | Reject |
Reference Interval
Clinical interpretive report will be provided.
Testing Laboratory
National University Hospital
Haematology, 67725320
Service Code
12006
LOINC Code Information
| PT | 5902-2 |
|---|---|
| INR | 6301-6 |
| APTT | 14979-9 |
| THROMBIN CLOTTING TIME | 3243-3 |
| FIBRINOGEN | 3255-7 |
| D-DIMER | 48067-3 |
| APTT(1+1) CORRECTION | 5946-6 |
| CONTROL PLASMA | 13488-2 |
Alias
DIC
Update
Last updated 21/03/2025
Reflex Tests
- APTT Mixing Study if APTT is > 50.0 seconds