Specimen Stability (for laboratory use only)
Collection Container
Light blue top (sodium citrate)
Service Code:
LBC00843
Collection Instructions:
Specify if patient is on any anticoagulant.
1. Draw sufficient blood into light blue top tube.
2. Fill blood minimally to the etched fill indicator.
3. Gently invert the tube 4 times.
4. Send specimen to the laboratory immediately.
1. Draw sufficient blood into light blue top tube.
2. Fill blood minimally to the etched fill indicator.
3. Gently invert the tube 4 times.
4. Send specimen to the laboratory immediately.
Unacceptable Conditions:
Clotted
Underfilled
Overfilled
Grossly haemolysed
Whole blood specimens received on ice or refrigerated
Underfilled
Overfilled
Grossly haemolysed
Whole blood specimens received on ice or refrigerated
Specimen Stability:
Ambient
Not Centrifuged: 2 hours
Refrigerate
Frozen
Reflex Tests:
N.A.
Performance
Turn Around Time:
Stat: 1 hour Routine: 2 hours
Days Test Performed:
Testing Laboratory:
Woodlands Hospital Laboratory Medicine and Pathology, Haematology
Clinical & Interpretative
Description:
Methodology:
Photo-optical
Reference Interval:
9.7 - 12.5 seconds
Critical Values:
INR >5.0
