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Test Code LAB126 Thyroxine, Total (T4)

Additional Codes

SQ: T4

COLLECTION

Container/Tube Type: 

Green No Gel (Lithium Heparin)  PREFERRED
Light Green (Heparin Plasma Separator Tube) PREFERRED
Red (No Additive)
SST (Serum Separator)

LAV (EDTA plasma)

 

 

Sample Volume Requirements: 

1.5 mL blood/0.5 mL serum

 

Minimum Sample Volume: 

0.8 mL blood/0.13 mL serum

STABILITY

Refrigerated Stability: 

7 days

 

Frozen Stability: 

1 month

 

Ambient Stability: 

2 hours

 

 

PERFORMING LAB

Performed: 

Daily

 

Analytical Time: 

1 day

 

Testing Laboratory: 

Pathology Laboratory

 

Laboratory Section: 

Core Laboratory

CPT Code

84436