Diferencia entre revisiones de «Hypermagnesemia»
Sin resumen de edición |
Sin resumen de edición |
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| Línea 11: | Línea 11: | ||
*12–15 - Hypotension, heart block, [[Cardiac Arrest]] | *12–15 - Hypotension, heart block, [[Cardiac Arrest]] | ||
== | ==Differential Diagnosis== | ||
#[[Renal Failure]] | #[[Renal Failure]] | ||
#[[Lithium]] | #[[Lithium]] | ||
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==See Also== | ==See Also== | ||
*[[Electrolyte Abnormalities (Main)]] | *[[Electrolyte Abnormalities (Main)]] | ||
[[Hypomagnesemia]] | *[[Hypomagnesemia]] | ||
==Source == | ==Source == | ||
<references/> | <references/> | ||
[[Category:FEN]] | [[Category:FEN]] | ||
[[Category:Tox]] | [[Category:Tox]] | ||
Revisión del 14:56 24 mar 2015
Background
- High >3.5
- Magnesium is an effective calcium channel blocker both extracellularly and intracellularly[1]
- Intracellular magnesium profoundly blocks several cardiac potassium channels.
Diagnosis
- 2–3 - Nausea
- 3–4 - Somnolence
- 4–8 - Loss of DTRs
- 8–12 - Respiratory depression
- 12–15 - Hypotension, heart block, Cardiac Arrest
Differential Diagnosis
- Renal Failure
- Lithium
- Volume depletion
- Rhabdo
- IV Mg (goal in PET/eclampsia 5-7 mEq/L)
- Massive PO intake (laxative abusers, accidental Epsom salts)
- Magnesium enemas
Treatment
- IVF (NS)
- Furosemide 20-40mg IVP
- CaCl 10% 5mL IV over 5min
- Consider HD for Mg > 8 or poor renal function
See Also
Source
- ↑ Rizzo MA, Fisher M, Lock JP. Hypermagnesemic pseudocoma. Arch Intern Med. 1993;153(9):1130.