Calcium:Creatinine Ratio Urine Test, Random

A random urine calcium-to-creatinine ratio is used to screen for hypercalciuria, as it is found to have a good correlation with 24-hour urine calcium excretion.

Quest
LabCorp

Sample Report

Test Code: 134908

CPT Code: 82340, 82570

Also Known As: Ca; Cr Ratio

Methodology:

Colorimetric

Specimen Type: Urine

Preparation:

No special preparation required.

Test Results:

2-4 days. May take longer based on weather, holiday or lab delays.

Test Code: 1633

CPT Code: 82310, 82570

Also Known As: Ca; Cr Ratio

Methodology:

Spectrophotometry (SP)

Specimen Type: Urine

Preparation:

No special preparation required.

Test Results:

1-3 days. May take longer based on weather, holiday or lab delays.

Description

Increased urinary excretion of calcium accompanies hyperparathyroidism, vitamin D intoxication, diseases that destroy bone (such as multiple myeloma), metastasis from prostatic cancer, and following calcium supplementation. Urine calcium is increased with immobilization, with steroid therapy, with Paget disease, and in primary (idiopathic) hypercalciuria

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Calcium:Creatinine Ratio Urine Test, Random

Description

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