PHARMACOLOGY 1: "LAUGHING GAS"
• DENTAL SURGERY (30% NO + 70% O2)
• USED WITH OTHER ANESTHETICS (HALOTHANE) to
increase their uptake and analgesic
activity
• high MAC (100%)
• S/E: post-op N&V, oxidizes cobalt in B12 --
megaloblastic anemia, fetal abnormalities,
diffusion hypoxia- replaces O2 in lungs

Question

"LAUGHING GAS"
• DENTAL SURGERY (30% NO + 70% O2)
• USED WITH OTHER ANESTHETICS (HALOTHANE) to 
increase their uptake and analgesic 
activity
• high MAC (100%)
• S/E: post-op N&V, oxidizes cobalt in B12 --
megaloblastic anemia, fetal abnormalities, 
diffusion hypoxia- replaces O2 in lungs

LEIGHTON DWIGHT OBILLOS · Accepted Answer

NITROUS OXIDE (N2O)
• "laughing gas"

PHARMACOLOGY 1

"LAUGHING GAS" • DENTAL SURGERY (30% NO + 70% O2) • USED WITH OTHER ANESTHETICS (HALOTHANE) to increase their uptake and analgesic activity • high MAC (100%) • S/E: post-op N&V, oxidizes cobalt in B12 -- megaloblastic anemia, fetal abnormalities, diffusion hypoxia- replaces O2 in lungs

NITROUS OXIDE (N2O) • "laughing gas"

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