Specimen Stability (for laboratory use only)
Collection Container
Light green top (lithium heparin, PST)
Service Code:
LBC00937
Collection Instructions:
1. Draw sufficient blood into light green top tube.
2. Gently invert the tube 8 - 10 times.
3. Send specimen to the laboratory immediately.
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.
Related Formula:
Adjusted Calcium:
Calcium (CA) (mmol/L) + (43 - Albumin (ALB)(g/L))*0.018 [Only
applicable for Albumin which is ≥ 20 g/L to 50 g/L]
Calcium (CA) (mmol/L) + (43 - Albumin (ALB)(g/L))*0.018 [Only
applicable for Albumin which is ≥ 20 g/L to 50 g/L]
Performance
Turn Around Time:
Stat: 2 hours Routine: 4 hours
Days Test Performed:
Testing Laboratory:
Woodlands Hospital Laboratory Medicine and Pathology, Biochemistry
Clinical & Interpretative
Description:
Methodology:
Photometric colorimetric (Arsenazo III)
Reference Interval:
2.15 - 2.50 mmol/L
Critical Values:
Total calcium, adjusted:
<1.75 mmol/L
>3.00 mmol/L
<1.75 mmol/L
>3.00 mmol/L
