Description
Plasma amino acids by ion-exchange is reserved for cases not reliably measured by the reverse phase HPLC technique. This includes the sulphur amino acid homocystine (measured as total homocysteine); and the amino acids citrulline and argininosuccinic acid.
Request a test
To request this test please send sample with a request providing patient ID (three identifiers), specimen information, assay required, relevant clinical details and sender information. Before sending sample please read details on requesting and labelling by clicking on the link. Please also refer to any additional information provided for this test.
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Additional information
Sample should be spun and separated within 30 minutes of collection. Sample should be stored frozen at �20�C until analysis.
Sending address
Chemical Pathology Reception
Level 1, Camelia Botnar Building
Great Ormond Street Hospital
Great Ormond Street
London
WC1N 3JH
Laboratory service
Chemical Pathology
Sample requirements
0.5ml Lithium Heparin plasma is the preferred type. Serum samples are acceptable.
Reference range
Please click on the link to view reference range
View the reference range for this test >
Turnaround time
2-3 weeks
Disease / group
Inherited amino acid disorders
Cost
Upon request
Call in advance?
Not required