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HelpTest Code CYSR Cystinuria Profile, Quantitative, Random, Urine
Reporting Name
Cystinuria Profile, QN, RandomUseful For
Biochemical diagnosis of cystinuria using random urine specimens
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineNecessary 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.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 70 days |
| Refrigerated | 14 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.
Day(s) Performed
Monday through Friday
CPT Code Information
82136
Genetics Test Information
This test provides biochemical diagnosis of cystinuria. It measures cystine, lysine, ornithine, and arginine.
Report Available
3 to 5 daysReject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Forms
If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.