Cystine 24 Hr Urine CYS24

Synonyms

Allscripts (AEHR) Order Name

Cystine, Urine 24 Hour

Sunrise Clinical Manager (SCM) Order Name

Cystine, Urine 24 Hour

Clinical Info

Cystinuria is an autosomal recessive disease in which dibasic amino acids, including cystine, are excreted in excess. Cystine kidney stones account for approximately 1-3% of all kidney stones. Age of onset is often younger than with other types of kidney stones and the recurrence is approximately one-third.

Specimen Type

Urine

Container

Urine Cntr

Collection Instructions

Container/Tube: 24-hour urine collection. No preservative.
Specimen:  1.8 mL 24 Hr urine (0.5 mL min) Urine with a pH less than 2.0 will be rejected
Transport Temperature:  Frozen
Stability: 60 Days Frozen
Note:  Starting and ending times of collection are required on request form for processing.

Transport Instructions

Frozen

Specimen Stability

60 Days Frozen
Note:  Starting and ending times of collection are required on request form for processing.

Methodology

Liquid Chromatography Mass Spectrometry  (LC/MS)

Days Performed

Tuesday and Thursday
TAT: 5 - 11 Days

Performing Laboratory

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

82131 - cystine
 
LOINC Code:  13966-7

PDM

5908280

Result Interpretation

Pediatric
0-9 years:	6-48	umol/24 hrs
10-13 years:	10-94	umol/24 hrs
14-17 years:	17-102	umol/24 hrs
Adults:	24-184	umol/24 hrs

To convert from umol/24hrs to mg/24hrs use the following conversion factor:
umol/24hrs x 0.24 = mg/24hrs

Pediatric
0-9 years:	6-48	umol/24 hrs
10-13 years:	10-94	umol/24 hrs
14-17 years:	17-102	umol/24 hrs
Adults:	24-184	umol/24 hrs

To convert from umol/24hrs to mg/24hrs use the following conversion factor:
umol/24hrs x 0.24 = mg/24hrs

Pediatric
0-9 years:	6-48	umol/24 hrs
10-13 years:	10-94	umol/24 hrs
14-17 years:	17-102	umol/24 hrs
Adults:	24-184	umol/24 hrs

To convert from umol/24hrs to mg/24hrs use the following conversion factor:
umol/24hrs x 0.24 = mg/24hrs

Forms