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HelpTest Code 740 Phosphorus Urine, Timed
Additional Codes
ALAB: PHOSUT
PowerChart: Phosphorus Urine Timed
MA Cerner: Phosphorus, 24 Hour, Urine
Test Method
MercyOne: Timed Endpoint Method; Beckman DxC700AU
MA: Photometric Ammonium molybdate Method; Roche Cobas 6000
Specimen Requirement
0.5 mL urine is required.
Additional Specimen Collection Information
Collect urine specimen according to the prescribed time. 24 hour preferred. Preservative may be required, refer to laboratory procedure. Label the specimen appropriately with two identifiers, patient name and another identifier, (patient ID number, DOB, etc.) include date and time of collection. Record the time period of collection on the container and the label. Submit entire specimen for analysis. Store the urine specimen refrigerated and transport to the lab within 48 hours.
Performance
Testing is performed Monday through Sunday.
Typically assayed within 2 hours after the specimen arrives at the testing site.
Reference Values
0.3-1.0 gm/24 hours
CPT Code Information
84105 Chemistry: Phosphorus inorganic (phosphate); urine
Useful For
Evaluation of hypo- or hyper-phosphatemic states
Evaluation of patients with nephrolithiasis
LOINC Code Information
2779-7 Phosphate [Mass/Time] In 24 Hour Urine