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Posted November 17, 2020

Discontinuation of Test MET09, Phenylalanine Loading Assay, in Plasma

Due to equipment consolidation, MNG will discontinue testing for phenylalanine loading.

Alternative diagnostic testing is available at MNG for diagnosing dopa-responsive dystonia, characterized by GTP cyclohydrolase I (GTPCH) deficiency or sepiapterin reductase (SR) deficiency; see the Dopa-Responsive Dystonia NGS Panel (NGS446) or Comprehensive Dystonia NGS Panel (NGS358).

MNG will discontinue MET09 in plasma; testing will not be performed on samples received after 11/10/2020.

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