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Test Code LAB1103 Tyrosine

Clinical System Name

Tyrosine Quant

Synonyms

Tyrosine

Sample Requirements

Specimen: Whole Blood

Container(s): Dark Green/Sodium Heparin, Lt. Green/Lithium Heparin

Preferred Vol:  1 mL

Minimum Vol: 0.5 mL

 

Note: Serum is acceptable but not preferred.

 

 

Processing Instructions

Reject due to:

Spin:Y

Aliquot:Y

Temp:-20 C

Storage location: -20 C BCG  Box

 

Off-site collection: Spin and freeze plasma/serum and ship frozen.

Stability

Temperature Time
Room temp ≤ 2 hr
Refrigerated 24 hrs
Frozen (Plasma/Serum only) 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

 

 

CPT Codes

84510

Methodology

Method: Ion exchange chromatography with post column derivitization

Analytical Volume: 0.1 mL

Limitations:

Description

Quantitation of tyrosine by ion exchange chromatography

 

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)

Reference Ranges

 

0 - 1 mo (mcmol/L)

1 mo - 5 yr (mcmol/L)

6 yr - adult (mcmol/L)

35 - 145

30 - 127

15 - 115