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Lab Dept:
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Urine/Stool
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Test Name:
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PHOSPHORUS, URINE
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General Information
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Lab Order Codes:
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UPO4
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Synonyms:
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PO4, Urine Random; Phosphate, Urine Random; P, Urine Random
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CPT Codes:
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84105 – Phosphorus inorganic (phosphate); urine
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Test Includes:
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Urine phosphorus concentration in mg/dL
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Logistics
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Test Indications:
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Useful in the follow-up of abnormal calcium values, kidney disease and uncontrolled diabetes.
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Lab Testing Sections:
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Chemistry
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 day
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Urine, random collection
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Container:
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Plastic leakproof container (No preservatives)
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Draw Volume:
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1 - 3 mL from a random urine collection
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Processed Volume:
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Minimum: 0.5 mL urine
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Collection:
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A random urine sample may be obtained by voiding into a urine cup and is often performed at the laboratory. Bring the refrigerated container to the lab. Make sure all specimens submitted to the laboratory are properly labeled with the patient’s name, medical record number and date of birth.
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Special Processing:
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Lab Staff: Acidify the urine aliquot before analysis to a pH of 1-2 with 6N HCL.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens
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Interpretive
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Reference Range:
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No reference ranges established for random urine samples
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Phosphomolybdate
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References:
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Tietz (1999) Clinical Guide to Laboratory Tests, 3rd ed, Philadelphia, WB Saunders Company, pp 1406-1408
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Siemens Healthcare,Phosphorus Flex Insert P/N 7170061.00-US, Rev L, 3/27/2008
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