TEST DESCRIPTION
TEST CODE
FT3
CPT CODE
84481
EXPECTED TURNAROUND TIME
2-5 days
(TAT is the interval starting when a specimen and order are received in the laboratory and ends with release of the test result.) In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary. In the event that reflex testing is performed TAT turnaround times can be extended.
TEST INCLUDES
T3, Free
SYNONYMS
NA
COLLECTION
SPECIMEN
Whole Blood
COLLECTION CONTAINERS
Gold top tube (SST)
COLLECTION AMOUNTS
Preferred: 2.5mL
Minimum: 1.0mL
REJECTION CRITERIA
Plasma, hemolyzed, lipemic or bacterially contaminated samples are unacceptable.
PROCESSING
SPECIMEN PROCESSING INSTRUCTIONS
Allow specimen to clot for 20-30 minutes and centrifuge. If using a non-gel barrier tube, separate serum or plasma into a transport tube.
PROCESSING SPECIMENS
Serum
PROCESSED AMOUNTS
Preferred: 1.0mL
Minimum: 0.5mL
SHIPPING/TRANSPORT & STORAGE
STABILITIES/STORAGE
AMBIENT
REFRIGERATED
FROZEN
4 hour(s)
7 day(s)
6 month(s)
SHIPPING INSTRUCTIONS
Ship refrigerated