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Test Code Gly CSF Pla Glycine CSF & Plasma

Clinical System Name

Glycine CSF and Plasma

Description

Paired CSF and plasma glycine for diagnosis of non-ketotic hyperglycinemia

Sample Requirements

Specimen: Cerebral Spinal Fluid and Whole Blood

Container(s): Sterile  Screw-Capped Container/ Tube/Syringe; Dark Green/Sodium Heparin, Lt. Green/Lithium Heparin

Preferred Vol:  0.5 mL/ 1 mL

Minimum Vol: 0.25 mL/ 0.5 mL

 

 

 

Processing Instructions

Reject due to:

Spin:Y

Aliquot:Y

Temp:-20 C

Storage location: -20 C BCG  Box

 

Off-site collection: Spin, freeze and ship frozen.

Stability

Temperature Time
Room temp ≤ 24 hr
Refrigerated < 24 hrs
Frozen 1 month

 

Availability

STAT Performed TAT
N M-F 3 days

Contact the Biochemical Genetics Lab for requests outside of stated availability (206)987-2216.

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Biochemical Genetics

Phone Number: 206-987-2216

 

 

Methodology

Method: Ion exchange chromatography with post column derivatization

Analytical Volume: 0.1 mL

Limitations:

CPT Codes

82131

Requisition

Biochemical Genetics Requisition

 

On the requisition include clinical information needed for appropriate interpretation.  (Age, gender, diet (e.g. TPN therapy), drug therapy and family history)

Clinical Utility

Diagnosis of non-ketotic hyperglycinemia

Reference Ranges

Normal CSF/plasma glycine = < 0.08