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Test Code CYSR Cystinuria Profile, Quantitative, Random, Urine

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Reporting Name

Cystinuria Profile, QN, Random

Specimen Type

Urine


Necessary Information


1. Patient's age is required.

2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information



Specimen Required


Supplies: Urine Tubes, 10 mL (T068)

Specimen Volume: 2 mL

Collection Instructions: Collect a random urine specimen.


Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Frozen (preferred) 70 days
  Refrigerated  14 days

Specimen Minimum Volume

1 mL

Day(s) Performed

Monday through Friday

Specimen Retention Time

2 weeks

Report Available

3 to 5 days

Reference Values

Amino Acid

Age groups

<2 months

2-35 months

3-6 years

7-17 years

≥18 years

Arginine

Arg

<250

<147

<81

<42

<65

Ornithine

Orn

<344

<238

<228

<291

<193

Cystine

Cys

<486

<285

<111

<84

<142

Lysine

Lys

<2217

<1321

<814

<463

<295

 

All results reported as nmol/mg creatinine.

Useful For

Biochemical diagnosis of cystinuria using random urine specimens

CPT Code Information

82136

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CYSR Cystinuria Profile, QN, Random 90784-0

 

Result ID Test Result Name Result LOINC Value
23517 Arginine 30062-4
23516 Ornithine 30049-1
23514 Cystine 30065-7
23515 Lysine 30048-3
50416 Reviewed By 18771-6

Disease States

  • Cystinuria

Genetics Test Information

This test provides biochemical diagnosis of cystinuria. It measures cystine, lysine, ornithine, and arginine.