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T3 UPTAKE

Mnemonic

T3 UPTAKE

Synonym

T-Uptake

Specimen Collection Requirements

Collect

Serum or Plasma, one gold (SST), lavender (EDTA) or green (sodium or lithium heparin) top tube

Handling

Allow serum to clot completely at room temperature. Separate serum or plasma from cells ASAP.

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated

Rejection Criteria

Grossly hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient: 24 hours; Refrigerated: 8 days; Frozen: 3 months

Testing Information

Performed

7 days/week

Reported

Within 24 hours

Method

Electrochemiluminescent Immunoassay

Referral Lab

ARUP (0070135)

Reference Values

Reference Values

28-41% Uptake

CPT Codes

84479

Last Updated: Thursday, January 5, 2017 03:41:40 AM


Client Services: 503-413-1234