Test directory: Vitamin C

Ordering Code334
Test NameVitamin C
AliasAscorbic Acid
Preferred SpecimenSerum
Preferred ContainerSST (Gold)
Other Specimen/ContainerSerum in Plain (Red)
Optimum Volume2 mL
Collection InstructionsFasting specimen preferred but not required
Patient should refrain from taking vitamin supplements 24 hours prior to collection.
Handling InstructionsCentrifuge to separate. Submit aliquot specimen in an Amber
Transport Tube (or aliquot tube that is wrapped in foil to protect from light). Freeze. Once frozen, do not allow specimen to thaw
Process specimen within 3 hours of collection
For temporary transfer, it is ok to transfer at -20 degrees or on dry ice
Specimen must be received at Central laboratory within the same day of receipt to store at -70 degrees.
Transport RequirementsOahu: Frozen
Airline: Frozen
Specimen StabilityAmbient: Not Stable
Refrigerated: Not Stable -70 Degrees: 28 Days
Rejection CriteriaReceived ambient or refrigerated, Thawed, Not protected from light.
Avail. StatNO
Analytic TimeUp to 6 Days
MethodologyLiquid Chromatography/ Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of April 25, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Vitamin CALLSee report.