Specimen Stability (for laboratory use only)
Collection Container
Arterial blood collection syringe (lithium heparin)
Collection Instructions:
1. After blood collection, remove needle and cap the syringe.
2. Mix specimen well to prevent clotting.
3. Send specimen to the laboratory immediately.
4. Keep specimen in iced water if not sent immediately.
2. Mix specimen well to prevent clotting.
3. Send specimen to the laboratory immediately.
4. Keep specimen in iced water if not sent immediately.
Unacceptable Conditions:
Clotted
Less than 1 mL
Less than 1 mL
Specimen Stability:
Ambient
Process within 30 minutes from collection time.
Refrigerate
Frozen
Add on Test:
No add test
Reflex Tests:
N.A.
Performance
Turn Around Time:
4 hours
Days Test Performed:
Testing Laboratory:
Woodlands Hospital Laboratory Medicine and Pathology, Biochemistry
Clinical & Interpretative
Description:
Methodology:
Potentiometric
Reference Interval:
1.15 - 1.35 mmol/L
Critical Values:
N.A.

