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12 Cards in this Set
- Front
- Back
what is the typical gradient difference between alveolar and arterial co2
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4-6mmHg higher in alveolus
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causes of increased etco2
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tourniquet release
exhausted soda lime faulty unidirectional valves inadequate fgf hypoventilation shivering laparoscopy increased metabolic states obstruction in breathing circuit "FIELO SHIT" |
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causes of decreased etco2
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hyperventilation
pe disconnect in breathing circ cardiac arrest apnea esophageal intubation increased dead space "DIE CHAP" |
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gas analysis works by what ?
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mass spectrometry
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disadvantages of gas analysis
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can only analyze gases of which it has collecting plates
approx 200ml of gas is sampled |
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redistribution in body heat from the cor to the periphery decreases core temp by what
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1-5 deg c
during 1st hr of anesthesia |
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perioperative hypothermia is associated with what complications
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shivering
impaired coagulation slowed metabolism delayed awakening increased incidence of wound infection |
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loss of heat with release of infrared rays
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radiation
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influenced by cutaneous vasodilation
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radiation
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>50% of heat loss in adult surgical pt is through
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radiation
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warm air moves away, cold air takes its place
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convection
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under anesthesia 12% of heat is lost through
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convection
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