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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