Cystine, Quantitative, Random Urine


Sunquest Code:UAA1R  
Epic Code:LAB3801Epic Name:Amino Acid Single Random Urine
Methodology:High performance ion exchange liquid chromatography
Turnaround Time:Performed Mon-Fri, results are reported the next day.
Special Instructions:Provide clinical history. Comment "Cystine"
Associated Links:

Urine Collection Procedure



Collection Instructions

Specimen:Urine, random collection
Optimal Volume:Submit entire collection; analysis requires 1 mL
Container:Plastic leakproof container, sterile


Processing and Shipping

Specimen Processing:Aliquot 5 mL, 1 mL minimum. Room temperature or refrigerated samples must arrive at Biochemical Genetics within 2 hours of collection (preferred). Alternately, store specimen in the freezer and ship on ice.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Biochemical Genetics  (UMMC-East Bank)


Interpretive

Reference Range:

 

Half-Cystine.

0-20 d

89-1795 µmol/g creat

21-90 d

48-849 µmol/g creat

3 mo–2 y

39-415 µmol/g creat

3-11 y

47-266 µmol/g creat

12 y and older

32-185 µmol/g creat

 

 

Use:Urine cystine is diagnostic for cystinuria.


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