Test Details

Mnemonic

LFFAT

Ordering Code

3434400

CPT-4 Code(s)

81596

Specimen Information

Patient Preparation

Overnight fasting preferred.
more

Collect

SST
more

Specimen Preparation

Centrifuge, separate serum from cells within 15 - 30 minutes and send 3.5 mL serum frozen in a screw-capped plastic vial.
more

Alternate Specimen

Serum: Red-top
more

Minimum Volume

2.0 mL
more

Transport Temperature

Frozen
more

Rejection Criteria

Gross lipemia or gross hemolysis, patients <2 years old, avoid freezing and thawing
more

Stability

Room temperature: 24 hours
Refrigerated: 5 days
Frozen (-20°C): 5 days
Frozen (-70°C): 28 days
more

Methodology

Nephelometry, Spectrophotometry (SP)
more

Reference Range

See report
more

Performing Laboratory

Quest SJC
more