Podcast 574: Cyanide Toxicity
Emergency Medical Minute23 Juni 2020

Podcast 574: Cyanide Toxicity

Contributor: Nick Tsipis, MD

Educational Pearls:

  • Significant cyanide exposure most commonly occurs from fire/smoke exposure particularly when plastics are involved
  • Cyanide binds to cytochrome oxidase leading to the use of anaerobic metabolism which causes a profound lactic acidosis
  • Classic toxicity includes a rapid loss of consciousness, hypotension, bradycardia, respiratory depression, and seizures
  • Mild exposures can lead to nausea/vomiting, headaches, and other nonspecific symptoms.
  • Sometimes patients will complain of an almond taste.
  • Cyanide toxicity will manifest on labs by a profound anion gap acidosis with elevated lactate (but don't wait for them to ponder the diagnosis)
  • Antidote is hydroxocobalamin and sodium thiosulfate
  • Severe cyanide exposure will likely need ICU level care until the blood gas levels return to their baselines and the lactic acidosis resolves

References

Nickson Chris C, Australian Centre for Health Innovation at Alfred Health. Cyanide Poisoning • LITFL • CCC Toxicology. Life in the Fast Lane • LITFL • Medical Blog. https://litfl.com/cyanide-poisoning-ccc/. Published April 2, 2019. Accessed June 11, 2020.

Parker-Cote JL, Rizer J, Vakkalanka JP, Rege SV, Holstege CP. Challenges in the diagnosis of acute cyanide poisoning. Clin Toxicol (Phila). 2018;56(7):609‐617. doi:10.1080/15563650.2018.1435886

MacLennan L, Moiemen N. Management of cyanide toxicity in patients with burns. Burns. 2015;41(1):18‐24. doi:10.1016/j.burns.2014.06.001

Summarized by Jackson Roos, MS4 | Edited by Erik Verzemnieks, MD



Avsnitt(1146)

Podcast #311: Recurrence of Seizures in Pediatrics

Podcast #311: Recurrence of Seizures in Pediatrics

Author: Aaron Lessen, M.D. Educational Pearls: Recurrence rate for first time unprovoked seizures - 5% after 48 hours, 14% at 2 weeks , 30% after 4 months. Higher risk for recurrence: age under 3; pa...

28 Mars 20182min

Podcast #310: Bicarb in DKA

Podcast #310: Bicarb in DKA

Author: Gretchen Hinson, M.D. Educational Pearls: Controversial topic. Pathophysiology - acidosis leads to an extracellular potassium shift. Patients in DKA will be intracellularly potassium deplete,...

26 Mars 20185min

Podcast #309: Return Visits to the ED for UTI

Podcast #309: Return Visits to the ED for UTI

Author: Alicia Oberle, MD Educational Pearls: Recent study has shown risk factors for return included patients at high risk for resistance (nursing home, obstructive uropathy), patient where diagno...

23 Mars 20182min

Podcast #308: Ultrasound in Cardiac Arrest

Podcast #308: Ultrasound in Cardiac Arrest

Author: Aaron Lessen, M.D. Educational Pearls: There is currently debate within the medical community about what constitutes cardiac activity on ultrasound in the setting of cardiac arrest. A recent ...

21 Mars 20182min

Podcast #307: Guillain-Barre Syndrome

Podcast #307: Guillain-Barre Syndrome

Author: Peter Bakes, M.D. Educational Pearls: Rare disease with 1-2 patients out of 100,000. About 60% of patients report a preceding diarrheal illness and classically presents with an ascending mo...

19 Mars 20184min

Podcast #306: Tramadol Drama

Podcast #306: Tramadol Drama

Author: Nick Hatch, M.D. Educational Pearls Tramadol acts at multiple receptors and is a partial agonist at the mu opioid receptor, but also blocks reuptake of serotonin and norepinephrine throughou...

16 Mars 20183min

Podcast #305: Stuffers vs. Packers : Drug-Packet Ingestion

Podcast #305: Stuffers vs. Packers : Drug-Packet Ingestion

Author: Aaron Lessen, M.D. Educational Pearls A "stuffer" is a term for someone who hastily and conceals a bag of drugs orally/rectally/vaginally in an unplanned situation. A "packer" is someone who...

14 Mars 20183min

Podcast #304: Nostalgia

Podcast #304: Nostalgia

Author: Dylan Luyten, MD Educational Pearls Johannes Hoffer coined term Nostalgia in 1688 in his medical dissertation. Nostalgia was a formal medical diagnosis, and one that dates back to 17th...

12 Mars 20185min

Populärt inom Vetenskap

dumma-manniskor
svd-nyhetsartiklar
p3-dystopia
allt-du-velat-veta
kapitalet-en-podd-om-ekonomi
det-morka-psyket
rss-ufo-bortom-rimligt-tvivel
rss-vetenskapsradion
pojkmottagningen
sexet
rss-vetenskapsradion-2
dumforklarat
rss-broccolipodden-en-podcast-som-inte-handlar-om-broccoli
medicinvetarna
halsorevolutionen
bildningspodden
rss-experimentet
rss-spraket
hacka-livet
vetenskapsradion