Citrate, Urine 24 Hour




Test Mnemonic

UCITD

CPT Codes

  • 82507 - QTY (1)

LOINC ®

6687-8

Aliases

  • Citric Acid, urine
  • Urine Citric Acid 24 Hour

Performing Laboratory

n/a


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
5 mLUrine, 24-hour (well-mixed)24 HR Urine ContainerRefrigerate during collection.RefrigeratedTransfer aliquot to clean transport tube. Acidify to pH < 4 with hydrochloric acid, when possible. Indicate total urine volume on requisition.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mL     

Stability

Environmental Condition Description
AmbientNone if not acidified. 48 hours if acidified (pH < 4)
Frozen30 days if not acidified. 30 days if acidified (pH < 4)
Refrigerated7 days if not acidified. 14 days if acidified (pH < 4)

Days Performed

Mon - Fri

Turnaround Time

1 - 3 days

Methodology

Name Description
Enzymatic 

Reference Range

Citrate, Urine 24 Hour
Sex Age From Age To Type Range Range Unit
Female18 Years  YearsNormal250 - 1160mg/24 hrs
Male 18 Years  YearsNormal120 - 930mg/24 hrs

Special Info

Indicate total volume on requisition. When possible, acidify urine with hydrochloric acid to obtain a pH <4 prior to transporting sample to testing laboratory.

Clinical Info

Evaluation of nephrolithiasis risk and prevention

Clinical Limitation

n/a

Clinical Reference

n/a