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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: Serum collected with or without gel separator. Collect after a 14 h fast or prior to next feeding in infants Write your initials, date and time of collection on the collection label.

Special Instructions Separate from cells within 2 hours of collection. Freeze serum within 4h of separation. Store and send frozen.

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

Stability: Stable for 4hrs refrigerated and 30 Days frozen.

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

Required Documentation

Turnaround Time (TAT)

5 Days

Test Utilization

Routine > 5 Days

Reference Value

Fasting: 13 - 115 ng/L

Test code




Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: June 06, 2019