Anaes Vivas · Volatile & inhalational agents
Volatile & inhalational agents — Viva
Clinical viva on volatile-agent selection, MAC, nitrous-oxide safety and MH
On this page
Study tools
Target exams
ANZCAFRCAABAEDAICFCAIFCA_SA
Prompt
Agent table comparing MAC, blood-gas solubility, pungency and key risks of sevoflurane, desflurane, isoflurane, halothane and nitrous oxide
Viva Stems
- The needle-phobic child needs mask induction. Which agent and why?
- Define MAC. Where does immobility act, and which receptors credibly mediate it?
- An at-risk adult needs major surgery — is nitrous oxide safe? What trial answers this?
- Which patients must never receive a volatile, and what technique do you use instead?
- Desflurane emerges fastest — why is it also the worst greenhouse gas, and what is the practical response?
References4ShowHide
- [1]Myles PS, et al. The safety of addition of nitrous oxide to general anaesthesia in at-risk patients (ENIGMA-II). Lancet, 2014.PMID 25142708
- [3]Sonner JM, et al. Inhaled anesthetics and immobility. Anesth Analg, 2003.PMID 12933393
- [4]Eger EI 2nd. Age, minimum alveolar anesthetic concentration, and MAC-awake. Anesth Analg, 2001.PMID 11574362
- [6]Sulbaek Andersen MP, et al. Assessing the potential climate impact of anaesthetic gases. Lancet Planet Health, 2023.PMID 37438003