Specimen Stability (for laboratory use only)
Collection Container
Light green top (lithium heparin, PST)
Service Code:
LBC01702
Collection Instructions:
Collection Time:
Via intravenous route:
Pre: Immediately before next dose
Post: 30 minutes after a 30 minutes I/V
Via intramuscular route:
Pre: Immediately before next dose
Post: 1 hour after injection
1. Draw sufficient blood into light green top tube.
2. Gently invert the tube 8 - 10 times.
3. Send specimen to the laboratory immediately.
Via intravenous route:
Pre: Immediately before next dose
Post: 30 minutes after a 30 minutes I/V
Via intramuscular route:
Pre: Immediately before next dose
Post: 1 hour after injection
1. Draw sufficient blood into light green top tube.
2. Gently invert the tube 8 - 10 times.
3. Send specimen to the laboratory immediately.
Unacceptable Conditions:
Clotted
Grossly haemolysed
Grossly icteric
Grossly lipaemic
Grossly haemolysed
Grossly icteric
Grossly lipaemic
Specimen Stability:
Ambient
Not Centrifuged: 2 hours
Refrigerate
Frozen
Reflex Tests:
N.A.
Remarks:
Performance
Turn Around Time:
Stat: 1 hour Routine: 4 hours
Days Test Performed:
Testing Laboratory:
Tan Tock Seng Hospital (TTSH), Biochemistry Laboratory
Clinical & Interpretative
Description:
Methodology:
Enzymatic multiplied immunoassay technique (EMIT)
Reference Interval:
Trough: 0.0 – 10.0 mg/L
Peak: 20.0 – 25.0 mg/L
Peak: 20.0 – 25.0 mg/L
Critical Values:
>50 mg/L
