Hypermagnesemia

Background

High >3.5

Diagnosis

• 3.5 - Decr DTRs
• 4 - Muscle weakness
• 5 - Hypotension
• 8 - Resp paralysis

DDX

1. Renal failure
2. Lithium
3. Volume depletion
4. Rhabdo

Treatment

1. IVF (NS)
2. Lasix 20-40mg IVP
3. Correct acidosis (NaBicarb iv nec)
4. CaCl

Source

2/12/06 DONALDSON (adapted from Tintinalli)