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Test Code PHOS 24U Phosphorus, 24 Hour, Urine

Important Note

Start and end times of collection are required on request form for processing.

Performing Laboratory

Memorial Hospital Laboratory- Automated Procedures  304-388-5953       

Specimen Requirements

Entire 24-hour urine collection in a urine container without preservative.

Refrigerate specimen during collection and send specimen on ice.

 

24-Hour Urine Collection Instructions

24 Hour Urine Collection

Storage and Stability

Refrigerate during and after collection.

Urine may contain larger quantities of organic phosphates, which can decompose on exposure to elevated temperatures.  When acidified with HCl, urine phosphate is stable for more than 6 months.

Reference Values

400-1,300 mg/24 hours

Methodology

Photometric assay

Days Test Set Up and Turnaround

Monday through Sunday, Continuously

AM Collection Expected by 9AM same day
Routine Expected within 24 hrs
Stat Expected within 1 hr
Timed Expected results are test dependant

CPT Coding

81050

84105

Specimen Rejection

  • Improperly labeled, collected, stored, and transported
  • Quantity not sufficient