Item Value
Test name T4, Total
Available Stat? No
Turn around times Test run Monday-Friday AM. Results available 1-2 days.
Performed by Quest
Normal range
1-8 Years 5.9-11.5 mcg/dL
9-13 Years 4.7-10.4 mcg/dL
14-17 Years 5.0-9.8 mcg/dL
≥ 18 year old 4.8-10.4 mcg/dL


Pregnancy:
1st Trimester 6.4-15.2 mcg/dL
2nd Trimester 7.4-15.2 mcg/dL
3rd Trimester 7.7-13.8 mcg/dL
All Trimesters Together 7.0-14.7 mcg/dL
Container type Gold top
Amount to Collect 2 mL blood
Collection Instructions Indicate testing is for pregnant patient on requisition.
Sample type Serum

If you have additional questions regarding this test, please call: 415-353-1667