Test Code FRET4 T4, FREE
Additional Codes
LAB127
Performing Laboratory
Porter Hospital Laboratory
Specimen Requirements
Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Specimen Volume: Full tube, submit 0.5 mL serum
Specimen Minimum Volume: 0.2 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
3. Centrifuged samples are stable for:
- 7 days at 2 – 8ºC
Specimen Transport Temperature
Refrigerated
Test Classification and CPT Coding
84439
Test Schedule / Analytical Time / Test Priority / Turn Around Time
Daily / 24 Hours / Available STAT / Routine - 4 Hours
STAT - 60 Minutes
Normal Reference Values
0 up to 15 Days | 1.0-4.1 ng/dL | |
15 Days up to 1 Months | 0.8-2.3 ng/dL | |
1 Months up to 4 Months | 0.8-1.8 ng/dL | |
4 Months up to 1 Years | 0.8-1.7 ng/dL | |
1 Years up to 18 Years | 0.8-1.4 ng/dL | |
18 Years up to Unspecified | 0.8-2.2 ng/dL |
Critical Values
None