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Phone Icon Phone Support:  1-800-876-0243     Mail Icon  info@amsreferencelab.com     Location Icon 2916 E. Central Wichita, KS 67214    
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Test ID: Z1541

Homocysteine Urine

  • CPT Code: 83090
  • LOINC: 26582-7
  • Specimen Type: Random Urine
  • Frequency: Setup: Mon-Fri; analytic time 2 days
  • Instructions: 4mL urine from second void of the morning. Fasting. Min 2.4mL Refrigerate preferred. Frozen acceptable.
  • Text: Useful For: Diagnosing inborn errors of methionine metabolism including: Cystathionine synthase deficiency(homocystinuria); Methylenetetrahydrofolate reductase (MTHFR) deficiency; Thermolabile variant of MTHFR, and methionine synthase (MS) deficiency.
  • Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Stable Isotope Dilution Analysis

 

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