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Labcorp Oklahoma, Inc.
Test Directory


Index:

Phosphorus Urine Timed

Order Name PHOS TM U
Test Number: 3006225
Revision Date 05/28/2021
Test Name Methodology LOINC Code
Total Urine Volume
3167-4 
Creatinine, Urine, mg/dL
Kinetic Alkaline Picrate (Jaffe) 20624-3 
Creatinine Urine Timed Estimated
 
Creatinine, Urine, 24 Hour
2162-6 
Phosphorus Urine mg/dL
Phosphomolybdate Complex 21458-5 
Estimated Phosphorus 24 Urine
2779-7 
Phosphorus 24 Hour Urine mg/24hr
2779-7 
Hours Collected - Prompt
30211-7 
Volume 24 Urine Prompt
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Urine, 24-hour 24 hour Urine Container Refrigerated
Instructions Timed urine collection.
Specimens should be collected with 20-30mL HCl to avoid precipitation of phosphate complexes
Record number of hours and volume in ml on the specimen container.
Keep refrigerated. Specimen stability: Ambient 8 hours (2 days if acidified <5 pH), Refrigerated 7 days.
GENERAL INFORMATION
Testing Schedule Mon-Fri 
Expected TAT 1-2 days  
Clinical Use Used to evaluate calcium/phosphorus balance. 
CPT Code(s) 84105
Lab Section Chemistry