Sign in →

Test Code Methionine Methionine Quant

Clinical System Name

Methionine Quant

Description

Quantitation of methionine by ion exchange chromatography

 

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 free plasma/serum and ship aliquot on dry ice.

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

 

 

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)

Reference Ranges

 

 

0 - 1 mo

1 mo - 6 yr

6 yr - adult

Methionine (mcmol/L)

15 - 50

10 - 45

10 - 40