Test Code LAB0230086 Calcium/Creatinine Ratio, Urine
Methodology
Arsenazo III Dye and Alkaline Picrate
Performing Laboratory
CentraCare Laboratory Services
Specimen Requirements
Specimen Type: Urine, random
Container/Tube: Plastic urine container
Specimen Volume: 10.0 mL
Minimum Volume: 0.5 mL
Collection Instructions: No preservative. When collected without preservative, the testing site will add 6N HCL drop by drop to obtain a pH of <2.0 before testing.
Specimen Transport Temperature
Ambient: 2 days with preservative
Refrigerated: 4 days
Frozen: 7 days
Reference Values
No established reference values
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
82340 - Calcium
82570 - Creatinine