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HelpTest Code LAB814 Urine Calcium, 24 Hour
Performing Lab
Arnot Ogden Medical Center
Ordering Recommendations
Evaluation of calcium oxalate and calcium phosphate kidney stone risk, and calculation of urinary supersaturations.
Evaluation of bone diseases, including osteoporosis and osteomalacia.
Collect
Urine
Collection Device
24 Hour Collection Jug
Collection Instructions
See Collection Instructions - 24 Hour Urines.
24 hour urine collection, keep refrigerated during collection period.
Specimen Preparation
See Collection Instructions - 24 Hour Urines.
24 hour urine collection, keep refrigerated during collection period.
ACIDIFY SAMPLES WITH HCL TO A pH OF 1.0-2.0 PRIOR TO ANAYLSIS.
Specimen Volume
5 mL
Stability (from collection to initiation)
| Room Temp | 5 Days |
| Refrigerated | 5 Weeks |
| Frozen | 6 Months |
Storage/Transport Temperature
Room Temp, Refrigerated, Frozen
Minimum Requirements
1 mL
Specimen Handling
Techs will enter 24 hour urine volume.
Aliquot Requirements
ACIDIFY SAMPLES WITH HCL TO A pH OF 1.0-2.0 PRIOR TO ANAYLSIS.
DELIVER SAMPLE TO AUTOMATION TECH.
DO NOT LOAD SAMPLE ON THE AUTOMATION LINE.
Methodology
Colorimetric
Remarks
TURN AROUND TIME
8 hours
Start Date
5/2/2020
Last Review Date
7/12/25 ES