Green top (sodium or lithium heparin) tube. Protect from light.
1 mL plasma
0.5 mL plasma
Fasting specimen. Protect specimen from light. STRICT FROZEN
Collect specimen in a green top tube following an overnight (12-14 hour) fast. Patient should abstain from taking vitamin supplements for 24 hours prior to specimen collection. Centrifuge in a 4 degree centrifuge within 2 hours, aliquot plasma into plastic vial, and freeze. Protect specimen from light.
Collect specimen in a green top tube following an overnight (12-14 hour) fast. Patient should abstain from taking vitamin supplements for 24 hours prior to specimen collection. Protect specimen from light.Send to Specimen Processing in a green bag.
Monday - Thursday, Saturday, Sunday
2 - 5 days
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
5 - 50 mcg/L
Determining vitamin B6 status, including in persons who present with progressive nerve compression disorders, such as carpal tunnel and tarsal tunnel syndromes; determining the overall success of a vitamin B6 supplementation program; and diagnosis and evaluation of hypophosphatasia.
Test sent to Mayo Medical Laboratories.
30552-4
84207
20442
PST is acceptable
STRICT frozen