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: [email protected].
Collection Con
Accurately timed 24 hr collection.
Instructions for Lab Staff: Standard lab processing- No special requirements.
Sample REQ
Urine
Ref. Range Notes
Units
mmol/24h