Test Details
Mnemonic
FATAF
Ordering Code
3502770
CPT-4 Code(s)
82725
Specimen Information
Patient Preparation
Overnight fasting prior to collection is preferred.
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells within 1 hour and send 1.0 mL serum frozen in a screw capped plastic vial.
Alternate Specimen
Serum: Serum separator tube (SST)
Plasma: EDTA, ACD B
Plasma: EDTA, ACD B
Minimum Volume
0.3 mL
Transport Temperature
Frozen
Rejection Criteria
Heparinized plasma.
Patients on heparin therapy
Patients on heparin therapy
Stability
Room temperature: Unacceptable
Refrigerated: 2 hours
Frozen: 30 days
Refrigerated: 2 hours
Frozen: 30 days
Methodology
Spectrophotometry-Enymatic
Reference Range
Newborns: <2.3 mmol/L
1 - 12 months: 0.50 - 1.60 mmol/L
1 - 7 years: 0.60 - 1.50 mmol/L
8 - 17 years: 0.20 - 1.10 mmol/L
Adults: 0.07 - 0.88 mmol/L
1 - 12 months: 0.50 - 1.60 mmol/L
1 - 7 years: 0.60 - 1.50 mmol/L
8 - 17 years: 0.20 - 1.10 mmol/L
Adults: 0.07 - 0.88 mmol/L
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes