Fatty Acids Profile, Essential Serum or Plasma
Test Mnemonic
CFAPRO
CPT Codes
- 82542 - QTY (1)
Aliases
- Essential Fatty Acids
- Polyunsaturated Fatty Acids
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Plasma | Sodium or Lithium heparin (Green) | Frozen | Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection. Separate plasma from cells ASAP or within 45 minutes of draw and transfer into standard aliquot tube. Freeze immediately. Note: Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis. Recommend submitting Biochemical Genetics Patient Information form with specimen. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Frozen | Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection. Separate serum from cells ASAP or within 45 minutes of draw and transfer into standard aliquot tube. Freeze immediately. Note: Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis. Recommend submitting Biochemical Genetics Patient Information form with specimen. | |
| 0.5 mL | Serum | No additive (Red) | Frozen | Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection. Separate serum from cells ASAP or within 45 minutes of draw and transfer into standard aliquot tube. Freeze immediately. Note: Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis. Recommend submitting Biochemical Genetics Patient Information form with specimen. | |
| 0.5 mL | Plasma | EDTA (Lavender) | Frozen | Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection. Separate plasma from cells ASAP or within 45 minutes of draw and transfer into standard aliquot tube. Freeze immediately. Note: Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis. Recommend submitting Biochemical Genetics Patient Information form with specimen. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.15 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | 3 months |
| Refrigerated | 1 week |
| Ambient | 48 hours |
Days Performed
Varies
Turnaround Time
5 - 11 days
Methodology
| Name | Description |
|---|---|
| Gas Chromatography Mass Spectrometry (GCMS) | |
| Stable Isotope Dilution |
Reference Range
Special Info
Patient Prep: Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection. Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis. Recommend submitting Biochemical Genetics Patient Information form with specimen. Grossly hemolyzed, icteric, lipemic, or non-fasting specimens are unacceptable. This test is New York DOH approved.
Clinical Info
Identification of patients with essential fatty acid deficiency, evaluation of nutritional status, and diet monitoring. This test does not screen for disorders of peroxisomal biogenesis/function.