Children's Mercy Hospitals and Clinics
WBC Cystine

CMH Lab Section
Biochemical Genetics

Clinical Description
NOTE: This should not be ordered as 'Cystine'.

This test is used in the diagnosis of cystinosis.
Testing requires immediate special processing in Biochemical Genetics

Notify Biochemical Genetics (X56900) at least 3-days prior to collection.

Specimen Requirements
5-10 mL blood in sodium heparin (green)
deliver to lab immediately; on ice

MUST pre-schedule with Biochemical Genetics

Special Instructions
Collection MUST be scheduled with Biochemical Genetics. Timely processing requires reagent preparation in advance of the specimen arriving in the lab.
Please provide the time of last medication.

Processing Instructions
Whole blood, do not spin

Test sent to University of California San Diego. See report for ranges

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