Esoterix
Expected Turnaround Time
2 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Specimen Requirements
Specimen
Serum, (preferred) or plasma, frozen
Volume
2 mL
Minimum Volume
1.0 mL (Note: This volume does not allow for repeat testing.)
Container
Serum gel tube; serum from a gel tube; serum from red top tube; plasma from green top tube; plasma from lavender top tube
Collection
Serum/plasma must be separated from cells within 45 minutes of venipuncture. Send serum/plasma in a plastic transport tube.
Storage Instructions
Freeze
Test Details
Methodology
Electrochemiluminescence immunoassay (ECLIA)
Reference Interval
Age Range (ng/mL) 1 - 7d 30 - 495 Children and Adults Range (ng/mL) Male 4.04 - 15.2 Female 4.79 - 23.3 During the first two months, values decline to those in adults.