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Test ID B6PA Pyridoxic Acid, Plasma

Secondary ID

42361

Specimen Type

Plasma Heparin


Shipping Instructions


Ship specimen in amber vial to protect from light.



Specimen Required


Only orderable as part of a profile. For more information see B6PRO / Vitamin B6 Profile (Pyridoxal 5-Phosphate and Pyridoxic Acid), Plasma.

 

Patient Preparation:

1. Fasting: 12 hours, required; Infants-should have specimen collected before next feeding, water can be taken as needed

2. For 24 hours before specimen collection, patient must not take multivitamins or vitamin supplements.

Supplies: Amber Frosted Tube, 5 mL (T915)

Collection Container/Tube: Green top (sodium or lithium heparin) or plasma gel separator (PST)

Submission Container/Tube: Amber vial

Specimen Volume: 1 mL

Collection Instructions:

1. Centrifuge at 4° C within 2 hours of collection.

2. Aliquot all plasma into amber vial and freeze immediately.


Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Heparin Frozen 29 days LIGHT PROTECTED

Reference Values

Only orderable as part of a profile. For more information see B6PRO / Vitamin B6 Profile (Pyridoxal 5-Phosphate and Pyridoxic Acid), Plasma.

 

3-30 mcg/L

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82542

Useful For

Determining the concentration of pyridoxic acid in the assessment of vitamin B6 status

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Day(s) Performed

Monday through Thursday, Saturday, Sunday

Report Available

3 to 7 days