Severe Hypermagnesemia with Normal Renal Function Can Improve with Symptomatic Treatment

Table 1

Symptoms of hypermagnesemia associated with serum Mg levels.

Serum Mg level (mg/dl)	Clinical symptoms
1.7-2.4	Normal serum level
5-8	Nausea/vomiting, cutaneous flushing, bradycardia, hypotension
9-12	Absent deep tendon reflexes, somnolence
>15	Respiratory depression, paralysis, complete heart block
>20	Cardiac arrest