Laboratory Medicine Program

Magnesium, urine

Clinical Decription:
The measurement of magnesium is used in the diagnosis and treatment of hypermagnesemia and monitoring of patients receiving prolonged magnesium-free intravenous therapy.
<br/><em>Abott</em>

Method: Automated method; c8000

Component Tests Used: n/a

Reference Ranges Used:
2.5 - 6.5 mmol/d

Specimen Type: Urine 24 hour
Volume: 20 mL (minimum: 10 mL)

Shipping: room temperature or 4C

Special Instructions: If required, discard first morning sample, collect all other urine for a 24 hour period, to include second morning sample. Add 0.5 mL 5% HCl to 12 mL urine. Record volume and aliquot.

Testing Schedule(s): on demand.

Turnaround Time: 1 day

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