Phosphorus, Timed Urine

Abbrev Code:UPHOST   
Order Code:LAB426Order Name:Phosphorus Timed Urine
Methodology:Molybdate UV
CPT Codes: 84105 x1, 84105 x1, 81050 x1, 81050 x1
Test Includes:Phosphorus urine mg/dL; phosphorus urine g/spec; duration in hours, volume in mL, Creatinine urine timed g/spec
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure

Collection Instructions

Specimen:Urine, timed collection (20-28 hours)
Optimal Volume:Submit entire collection; analysis requires 1 mL
Container:3 L plastic jug
Collection Instructions:Collection of 24 hour urine specimen should be made in a container with 10-20 mL of 6M HCl. Container without preservatives is acceptable. See processing note below.

Processing and Shipping

Specimen Processing:Mix collection well before aliquot is taken. Aliquot 5 mL, 1 mL minimum. If preservatives are not used during 24 hour urine collection; acidify the sample to below 3.0 pH before analysis. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:To be determined by M Health Fairview. Store cooled during collection. Centrifuge samples containing precipitates before performing the assay.
Test Performed at or Referral Lab Chemistry  (Roche-UMMC East)


Reference Range:Urine Chemistry Reference Ranges
Use:Evaluate phosphorus metabolism.

Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact: for TestID: 1045"