Cystine - urine

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Eurofins Biomnis code

CYSTU

Specialty

Analytical Chemistry

Clinical significance

There are a total of 20 amino acids. Of these, 8 are referred to as essential (leucine, isoleucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine) because they can only be obtained from food and therefore must be present in the diet. Amino acid levels are highly variable and their metabolism is dependent on hormonal, metabolic and dietary factors. Pathological modifications of amino acids may be due to either metabolic problems (impaired kidney or liver function) or enzyme deficiencies.

Preanalytics
  • A tube specifically for this analysis : No
Further information

Enclose the specific clinical information form (R1-INTGB : Amino Acids - Organic Acids)
Fasting sample
Sample to be frozen within 1 hour. Home sampling is not advisable.
The urine creatinine level, essential information for the result interpretation, is systematically performed

Specific equipment available
  • Tube for urine sample (4mL)-T28
Documents to download
Methodology

HPLC - High Performance Liquid Chromatography

Turnaround time

1 week

Testing Laboratory

Biomnis Lyon

Contact(s)
Customer Care