Phosphate - urine

Last updated: Saturday, 20, March, 2004

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Item Process
Specimen24 hour urine collection with HCl as preservative.
MethodSpectrophotometry.
Reference Interval
10-40 mmol/24 hours (varies with intake and plasma phosphate).
ApplicationOnly occasionally indicated to identify phosphaturia in hypophosphataemic states.
InterpretationHigh PTH levels and renal tubular disorders will result in relatively increased phosphate excretion.
Reference

Rodriguez-Soriano J et al. J Clin Endocrinol Metab 1968; 28: 1555-1563.