Cystine, Quantitative Urine

Overview

  • EPIC Code:
  • Soft Test Code:
  • MSOT
  • Send Out Test Code:
  • 6017 [401X]
Alternate Names
  • Cystine, Quantitative, Random Urine
Included Tests

Cystine; Creatinine


Clinical Significance

Cystinuria is an autosomal recessive disease in which dibasic amino acids, including cystine, are excreted in excess.


Specimen Collection & Preparation

Specimen Requirements

1.8 mL Urine in a Yellow Capped Tube

Alternate Specimen

TransportAndStorage

60 days Frozen

Collection Instructions

Patient Age must be included on the order

Do not add perservatives

Do not Thaw

Clinical Interpretation

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.


Production Schedule

Sites Performed
  • Quest - Chantilly to San Juan Capistrano
Days Performed
Tuesday
Thursday
Departments
  • Sendouts - Miscellaneous
Turn Around Time

5 to 7 days


Coding & Compliance

CDM

00913333


CPT Coding

82131, 82570