Anaes SAQs · Electricity, diathermy & theatre safety
Macroshock, microshock, and the protective measures
Primary physics — the macroshock (the whole-body current through the skin, the let-go threshold, the VF at 50-100 mA) and the microshock (the 10-100 microampere current direct to the heart via a central line); and the earthing, the isolated supply with the LIM, the RCD, and the equipotential bonding.
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Prompt
Define the macroshock and the microshock, contrast their mechanisms and their threshold currents, and describe the measures that protect the patient from the electric shock in the operating theatre.
Question
Define the macroshock and the microshock, contrast their mechanisms and their threshold currents, and describe the measures that protect the patient from the electric shock in the operating theatre.
References2ShowHide
- [3]Burgess RC. Electrical safety. Handb Clin Neurol, 2019.PMID 31277877
- [31277878]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.