Podcast 503: Magical Magnesium

Podcast 503: Magical Magnesium

Contributor: Dylan Luyten, MD

Educational Pearls:

  • Those that are hypokalemic are often hypomagnesemic, and should receive magnesium (Mg) supplementation if repleting potassium
  • Mg levels are typically not necessary - if someone is suspect to have hypomagnesemia, just given them Mg
  • Mg increases the AV node refractory period and therefore may be helpful as an adjunct to those in atrial fibrillation with a rapid ventricular response
  • Mg is the preferred treatment for seizure prophylaxis in preeclampsia. All patients with suspected preeclampsia should get 4g Mg IV over 20 min
  • Mg may reduce hospital admissions in those with severe asthma, though it has not shown to have mortality or other benefits in acute exacerbations

Editor's note: and we didn't even touch on magnesium in headaches

References

Huang CL, Kuo E. Mechanism of hypokalemia in magnesium deficiency. J Am Soc Nephrol. 2007 Oct;18(10):2649-52. doi: 10.1681/ASN.2007070792. Epub 2007 Sep 5. Review. PubMed PMID: 17804670.

Ismail Y, Ismail AA, Ismail AA. The underestimated problem of using serum magnesium measurements to exclude magnesium deficiency in adults; a health warning is needed for "normal" results. Clin Chem Lab Med. 2010 Mar;48(3):323-7. doi: 10.1515/CCLM.2010.077. PubMed PMID: 20170394.

Heitz C, Morgenstern J, Bond C, Milne WK. Hot Off the Press: Low-dose Magnesium Sulfate Versus High Dose in the Early Management of Rapid Atrial Fibrillation: Randomized Controlled Double-blind Study. Acad Emerg Med. 2019 Sep;26(9):1093-1095. doi: 10.1111/acem.13720. Epub 2019 Mar 18. PubMed PMID: 30815951.

Levy Z, Slesinger TL. Does intravenous magnesium reduce the need for hospital admission among adult patients with acute asthma exacerbations?. Ann Emerg Med.2015 Jun;65(6):702-3. doi: 10.1016/j.annemergmed.2014.07.019. Epub 2014 Aug 13. PubMed PMID: 25128007.

Summarized by Will Dewispelaere, MS4 | Edited by Erik Verzemnieks, MD



Episoder(1147)

Episode 982: Epistaxis Management

Episode 982: Epistaxis Management

Contributor: Meghan Hurley, MD Educational Pearls: 1. Initial Assessment Start with a physical examination: Determine if the bleed is anterior or posterior. Perform a primary survey: assess ai...

10 Nov 20256min

Episode 981: Electrical Burns

Episode 981: Electrical Burns

Contributor: Travis Barlock, MD Educational Pearls: Quick Statistics on Electrical Burns: Electrical burns compose roughly 2 to 9% of all burns that come into emergency departments. The majority of p...

3 Nov 20253min

Tox Talks 2025 Recap 1, Digoxin and Beta Blockers

Tox Talks 2025 Recap 1, Digoxin and Beta Blockers

Contributors: Preeya Prakash MD, Adam Greenhaw PharmD, Travis Barlock MD, and Jeffrey Olson MS4 In this episode, cardiologist Preeya Prakash and medical student Jeffrey Olson listen in as two cases ar...

29 Okt 202557min

Episode 980: Brain Injury Guidelines (BIG)

Episode 980: Brain Injury Guidelines (BIG)

Contributor: Aaron Lessen, MD Educational Pearls: Traumatic Brain Injuries are a frequent complaint in the Emergency Department and have increased in recent years. The American Association for Surgery...

27 Okt 20253min

Episode 979: Oral vs Temporal Thermometers

Episode 979: Oral vs Temporal Thermometers

Contributor: Taylor Lynch, MD Educational Pearls: A recent study published in a pediatric journal in April 2025 compared temporal and oral thermometers Paired temperature measurements (temporal and o...

20 Okt 20253min

Episode 978: Delusional Parasitosis

Episode 978: Delusional Parasitosis

Contributor: Taylor Lynch, MD Educational Pearls: Delusional parasitosis is a subtype of the psychiatric condition delusional disorder Defined as a fixed, false belief of infestation by parasites or...

13 Okt 20253min

Episode 977: Amyloid Therapy and Stroke-like Events

Episode 977: Amyloid Therapy and Stroke-like Events

Contributor: Aaron Lessen, MD Educational Pearls: The cause of Alzheimer's disease is multifactorial, but the most widely suspected mechanism is the amyloid cascade hypothesis: Beta-amyloid proteins ...

6 Okt 20253min

Episode 976: Improvised Burr Hole in an Epidural Hematoma

Episode 976: Improvised Burr Hole in an Epidural Hematoma

Contributor: Alec Coston, MD Case Report Summary: A 17-year-old female involved in a motor vehicle collision presented to a rural emergency facility via personally operated vehicle. During workup and ...

29 Sep 20254min

Populært innen Vitenskap

fastlegen
tingenes-tilstand
rekommandert
jss
liberal-halvtime
rss-rekommandert
villmarksliv
sinnsyn
rss-paradigmepodden
pod-britannia
forskningno
fjellsportpodden
dekodet-2
rss-overskuddsliv
rss-lundqvist-podden
tomprat-med-gunnar-tjomlid
hva-er-greia-med
rss-nysgjerrige-norge
utenrikshospitalet
tidlose-historier