Laboratory Medicine
Test Directory / Urine Phosphate
Urine Phosphate
24 hour container (with or without additives), urine monovette or white topped universal (without additives)
| Test | Urine Phosphate |
|---|---|
| Common Abbreviations | UPHO |
| Profile | NA |
| Tube type | 24 hour container (with or without additives), urine monovette or white topped universal (without additives) |
| Clinical Indication | Urinary phosphate analysis is useful in the differential diagnosis of hyper and hypophosphatemia and in the diagnosis and monitoring of renal calculi. The calculation of the renal tubular reabsorption of phosphate (TmP/GFR) can be useful in identifying a need for replacement, monitor recovery of tubules following damage, monitoring response to growth hormone replacement, oncogenic osteomalacia and help diagnosis of some rare tubular diseases ie X-linked hypophosphatemia rickets. |
| Specimen Type | Urine |
| Sample type | Acidified or Plain 24 hour urine or Plain Random Urine |
| Minimum Volume | 1mL |
| Special Precautions | No special requirements |
| Stability | Plain (unacidified) urine: 48 hours at 15 - 25°C and at least 48 hours at 4°C Acidified urine: At least 6 months at 4°C |
| Turnaround Time | Inpatient: 6 hours Outpatient/ GP: 24 hours |
| Laboratory | York and Scarborough |
| Reference Interval | 15 -50mmol/24 hours (Recommended by the Pathology Harmonisation Reference Group) |
| Limitations | NA |
| Notes |
