VITB6
Vitamin B6 (Pyridoxal-5-Phosphate)
EPIC Test Procedure Code: LAB3681
Synonyms:
Pyridoxal 5 Phosphate (PLP), Plasma
PLP
Performing Lab:
Referral Laboratory
Patient Preparation:
1. Patient should fast overnight (12-14 hours); infants-should have specimen collected before next feeding. Water can
be taken as needed.
2. For 24 hours before specimen collection, patient should not take multivitamins or vitamin supplements.
Container Type:
Green top (sodium or lithium heparin) or Plasma gel separator (PST)
Specimen Type:
Plasma Heparin
Preferred Volume:
1 mL
Minimum Volume:
0.75 mL
Specimen Processing:
1. Within 2 hours of collection, centrifuge at 4 degrees C.
2. Aliquot all plasma into amber vial and freeze immediately.
Store and Transport:
Frozen (Light Protected)
Stability:
Frozen - 29 days
Unacceptable Condition:
Specimens not protected from light
CPT Codes:
84207 - Vitamin B6 Pyridoxal Phosphate (EAP 30021463)
Test Schedule:
Monday through Thursday, Saturday, Sunday
Turnaround Time:
3-8 Days
Method:
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Reference Ranges:
Please refer to the performing lab report for applicable reference ranges