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HelpTest Code LAB426 Phosphorus - 24 Hour Urine
Department
CHEMISTRY
Collection Requirements
24 hour urine.
Do not add preservatives to the collection container.
Keep the container on ice or refrigerated during collection.
Transport
Refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Keep specimen refrigerated until processing.
Measure total volume.
Acidify a portion of the urine, with 6N HCl, to a pH of < 3.
Aliquot, centrifuge and refrigerate, note total volume and PH on the label.
Stability
Ambient: 8 hours
Refrigerated: 3 days
Frozen: 6 months
Reference Range
0.7 – 1.5 gm/24hr
Methodology
Roche c503 Molybdate UV.
Performed
Sunday – Saturday
7:00 am – 3:00 pm
Reported
As completed
CPT Codes
84105