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Alias Names: MPA
Methodology: High Performance Liquid Chromatography (HPLC)
Edit Date: 6/11/2010
Performed: Daily
Released: 24-48 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 80299-90
Specimen Collection Details
Collection: One 5 mL red top tube. Also acceptable: One 4 mL lavender top tube (EDTA).
Handling: Allow red tube to clot, centrifuge and immediately separate serum or plasma into a plastic vial. Freeze.
Stability: 6 weeks ambient, 6 weeks refrigerated, or 11 months frozen.
Standard Volume: 1 mL serum or plasma.
Minimum Volume: 0.6 mL serum or plasma.
Transport: Frozen on dry ice.
Comments: No therapeutic range has been established. Dosing of 2 g/day gives trough values of 1.0-3.5 µg/mL while 3 g/day gives values up to 5.0 µg/mL. Trough levels between 2.0 and 4.0 µg/mL have been suggested to maximize efficacy and minimize adverse effects.
Rejection Criteria: Specimen collected in SST or gel barrier tube.
This test may require insurance company prior authorization before ordering.
Please check the prior authorization list
Failure to gain preauthorization may result in denial of coverage.

PeaceHealth Laboratories