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Laboratory Medicine

Test catalogue


Test Name


Gold Tube Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Volume = 1 mL serum

Acceptable sample type : Plasma

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

Specimen Handling

Collection Instructions: Collect sample in red or gold top container with or without gel separator. Heparin or EDTA plasma are also acceptable specimen type. Write your initials, date and time of collection on the collection label or requisition.

Laboratory Staff Instructions: Separate serum from cells as soon as possible.

Rejection Criteria: Unlabeled or samples of non sufficient quantity.

Stability: Stable for 3 days at room temperature, at 2-8°C for 6 days and frozen at -20°C for 24 months

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

Required Documentation

Turnaround Time (TAT)

1 hour for Trauma/Stat
2 hours for routine

Reference Value

Acute care setting:

< 50 y below 450 ng/L

50-75 y below 900 ng/L

>75 y below 1800 ng/L


Ambulatory care setting:

< 50 y below 125 ng/L

50-75 y below 250 ng/L

>75 y below 500 ng/L

Test Code



Sandwich Immunoassay

Testing Location


Other Information

Last Updated: April 07, 2020