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Laboratory Medicine

Laboratory Test Catalogue

Phosphorous (Urine)

Test Name

Phosphorous (Urine)

Urine sample Specimen Type / Requirements

Container Type = Small orange cap container

Minimum Volume = 2 mL urine

Specimen Handling

Collection Instructions: Collect Random Urine in a small sterile orange cap container. Indicate date and time of Collection

Laboratory Staff Instructions: Create an aliquot from the sample and Centrifuge before placing on automation line using the bypass rack. Specimens should be acidified to pH < 3.0 with 6N hydrochloric acid before analysis.

Sample Rejection Criteria: Urine collected with acid/alkaline, unlabeled, leaking specimen

Stability: Stable at room temperature 8 h, refrigerated for 2 days and frozen for 6 months.

Transportation: Send sample to core lab ASAP

Required Documentation

Turnaround Time (TAT)

4 hours

Test Utilization

Reference Value

Test Code



Spectrophotometric (Colorimetry

Testing Location


Other Information

Last Updated: February 12, 2020