Last Modified:
9/10/2018 6:34:35 AM
Specimen Requirements:
1.8 mL Urine in a Yellow Capped Tube
Collection Instructions:
Patient Age must be included on the order
Do not add perservatives
Do not Thaw
Minimum Volume:
0.5 mL Urine
Transport & Storage: Temperature/Stability:
60 days Frozen
Rejection Criteria:
Urine with a pH less than 2.0
Reference Range:
| Cystine |
|
| Pediatric (<18 Years) |
3.2 - 12.6 mmol/mol creat |
| Adult |
3.4 - 16.4 mmol/mol creat |
| Creatinine Random Urine |
|
|
| ≤6 Months |
0.18-2.48 |
mmol/L |
| 7-11 Months |
0.18-2.74 |
mmol/L |
| 1-2 Years |
0.18-9.72 |
mmol/L |
| 3-8 Years |
0.18-11.49 |
mmol/L |
| 9-12 Years |
0.18-14.14 |
mmol/L |
| Adult |
1.77-23.31 |
mmol/L |
Methodology:
Liquid Chromatography/Mass Spectrometry (LC/MS)
Clinical Significance:
Cystinuria is an autosomal recessive disease in which dibasic amino acids, including cystine, are excreted in excess.
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
5 to 7 days
Days Performed:
Tuesday, Thursday
Sites Performed:
Quest - Chantilly to San Juan Capistrano
PHL Test Code:
MSOT
EPIC Test Code:
Send Out Test Code:
6017 [401X]
Alternate Test Names:
Cystine, Quantitative, Random Urine
Included Tests:
Cystine; Creatinine
CPT Coding:
82131, 82570
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