Test directory: Cystine, 24Hr Urine

Ordering Code4381
Test NameCystine, 24Hr Urine
Preferred SpecimenUrine, 24 Hour
Preferred Container24 Hour Urine Container
No Preservatives
Other Specimen/ContainerNone
Optimum Volume20 mL
Collection InstructionsKeep refrigerated during collection
Record entire 24 Hr Vol on container & requisition
Patient age & sex required on requisition.
Handling InstructionsMix sample well, measure total volume and remove aliquot
Freeze aliquot immediately.
Transport RequirementsOahu: Refrigerated
Airline: Frozen
Specimen StabilityAmbient: Not Stable
Refrigerated: Not Stable
Frozen: 2 Months
Rejection CriteriaAmbient, pH<2, Preservatives used, Refrigerated, Thawed
Avail. StatNO
Analytic TimeUp to 10 Days
MethodologyLiquid Chromatography Mass Spectrometry (LCMS)
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of November 21, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Date of BirthALLSee report.
Total VolumeALLSee report.
Cystine, 24 Hour UrineALLSee report.