Free T4
|
Test Name |
Free T4 |
|
Test Code |
592 |
|
Unit |
ng/dL |
|
Station |
Chemistry |
|
CPT Code |
84439 |
|
Performing Facility |
American Medical Labs, Herzliya |
|
Analyzer |
Roche cobas 6000 |
|
Test Method |
Electrochemiluminescence immunoassay |
|
AML Preferred Tube |
5 mL SST gel |
|
Storage Instructions |
Stability: 7 days at 2 to 8 oC 30 days at -20 oC , Freeze only once. |
|
Min. Volume |
1 mL |
|
Turn-Around-Time |
One day. |
|
Intended Use |
Free T4 is a useful tool in clinical routine dignostics for the assessment of the thyroid status . It should be measured together with TSH if thyroid disorders are suspected and is also suitable for monitoring thyrosuppressive therapy.
|
|
Limitations |
Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration. |
|
Patient Preparation |
No patient preparation needed. |
|
Reasons for Rejection |
Do not use sodium citrate tube, Improper labelling. |
|
Adult Reference Ranges |
0.8-1.9 ng/dL |