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TEST DESCRIPTION

TEST INCLUDES

FT4

CPT CODE

84439

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.

SYNONYMS

NA

COLLECTION

COLLECTION INSTRUCTIONS

Fasting is recommended.

SPECIMEN

Whole Blood

CONTAINER(S)

Gold top tube (SST)

PROCESS AMOUNT

Preferred: 1.0mL
Minimum: 0.5mL

REJECTION CRITERIA:

Lipemic, hemolyzed, heat-inactivated and contaminated specimens are unacceptable.

SHIPPING/TRANSPORT & STORAGE

STABILITIES/STORAGE

AMBIENT
REFRIGERATED
FROZEN

4 hour(s)
2 week(s)
1 month(s)

SPECIMEN

Ship refrigerated