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HelpTest ID PIPA Pipecolic Acid, Serum
Useful For
Differentiating between disorders of peroxisomal biogenesis (eg, Zellweger syndrome) and disorders with loss of a single peroxisomal function
Detecting abnormal elevations of pipecolic acid in serum
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumNecessary Information
Patient's age is required.
Specimen Required
Patient Preparation:
Fasting 12 hours, required; Infants and small children should have specimen collected before next feeding/meal
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL serum
Collection Instructions: Centrifuge and aliquot serum into plastic vial.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 94 days |
| Refrigerated | 14 days |
Special Instructions
Reference Values
<6 months: ≤6.0 nmol/mL
6 months-<1 year: ≤5.9 nmol/mL
1-17 years: ≤4.3 nmol/mL
≥18 years: ≤7.4 nmol/mL
Day(s) Performed
Tuesday
CPT Code Information
82542
Report Available
3 to 9 daysReject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Testing Algorithm
For more information see Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Forms
If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.