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


Minimum Volume

0.5 mL Urine


Neonatal Volumne

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