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Laboratory Medicine

Test catalogue


Test Name


Gold Tube Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Volume = 2 ml serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in gold (SST) or red top. Ensure that both tube and requisition are labelled properly. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: Separate from cells within 2 hours of collection.

Rejection Criteria: Grossly hemolyzed, Unlabeled or Not Sufficient Quantity Samples will be rejected. Avoid multiple freeze-thaw.

Stability: Samples are stable for one week at 2 – 8°C or > 1 year at -20°C.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turn Around Time (TAT)

1 hour stat/trauma 2 hours routine

Test Utilization


Reference Value

0.5 – 1.5 mmol/L

Toxic range: >2.0 mmol/L

Test Code




Testing Location


Other Information

Last Updated: June 06, 2019