Magnesium (urine)
Urinary magnesium excretion should be interpreted in concert with serum concentrations. In the presence of hypomagnesemia, a 24-hour urine magnesium >24 mg/day or fractional excretion >0.5% suggests renal magnesium wasting. Lower values suggest inadequate magnesium intake and/or gastrointestinal losses
| Tube | 08 (UR) - Urine 24 Hr |
|---|---|
| ID | Tests&Tubes0081 |
| Turn Around | A&E: N/A Day Case: 24 Hours In-Patient: 24 Hours Out-Patient: 24 Hours GP: 24 Hours |
| Send to | Blood Sciences Cross Site |
| Contact | For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net. |
| Collection Con | Accurately timed 24 hr collection. Instructions for Lab Staff: Standard lab processing- No special requirements |
| Sample REQ | Urine |
| Ref. Range Notes | Blood Sciences Refernce ranges available through the useful information and links page: https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/ |
| Units | mmol/24h |
| Telepath | MGU1L |
| ICE Codes | LMGU |
