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3 parts of the fire triad - ANSWEROxidizers ignition/heat fuels Examples of oxidizers -
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3 parts of the fire triad - ANSWEROxidizers ignition/heat fuels Examples of oxidizers - ANSWEROxygen and N V= - ANSWERVolts I= - ANSWERAmps R= - ANSWEROhms or resistance What is ohm's law - ANSWERV= IR How do you find watts - ANSWERVxI (volts x amps) or amps squared x resistance Examples of ignition source - ANSWERCautery lasers sparks drills fiberoptics Examples of fuel source - ANSWERAnything; drapes laps sponges Most common surgical fires - ANSWEROn pt and in pt What % accounts for head and neck fires - ANSWER28% What % accounts for airway fires - ANSWER34% Oxygen concentration should be set at - ANSWER25% or less What kind of ETT should you use to prevent fires - ANSWERCuffed or laser How long must open oxygen source be off prior to cautery - ANSWERAt least 1 min Benefit of laser ETT - ANSWERDouble cuffed and you can add methylene blue Main fire prevention - ANSWERCommunication with OR team During an airway fire do you ventilate as you extubate - ANSWERNo Steps for airway fire - ANSWER① Disconnect circuit ② turn off gas ③ do not ventilate ④ extubate ⑤ pour saline in airway to extinguish fire ⑥ remove debris ⑦ ventilate and re-establish airway ⑧ consider bronch RACE - ANSWERRescue Alarm Contain Extinguish Steps for on pt fire - ANSWER① Turn off all gases ② Remove burning material ③ Extingush (saline or sterile water) ④ assess pt, check for smoke inhalation
Current or amount of electrons flowing through - ANSWERAmps Volts can be compared to - ANSWERWater pressure Amps can be compared to - ANSWERAmount of blood flowing through a vessel Purpose of electrical diagrams - ANSWERSchematically represent electrical circuits A circuit exists when - ANSWERCharge is able to flow around a closed path 2 types of circuits - ANSWER① Direct current ② Alternating current Current flows in one direction - ANSWERDirect current circuits Example of DC circuits - ANSWERBatteries Current periodically changes direction - ANSWERAlternating current circuits Example of AC circuits - ANSWERWall outlets and generators Circuit with only one path that can be taken by the current - ANSWERSeries circuit When batteries are in a series circuit the volts are - ANSWERAdded together Resistors in a series - ANSWERAct the same as batteries Offer the current more than one path and have junctions where wires intersect - ANSWERParallel circuits Example of parallel circuits - ANSWERHousehold circuits; so that specific appliances can run without all appliances being on Example of semiconductor - ANSWERSilicon; used in electronics The sensation and muscular spasm caused by an electric current passing through the body - ANSWERShock 2 types of shock - ANSWERMacroshock Microshock Microshocks are measured in - ANSWERMilliamp Inverse square law - ANSWER1/ distance squared ( 6 ft = 1/36 amt of radiation) Biggest danger with lasers is damage to the - ANSWEREyes Does the pt wear safety glasses with lasers - ANSWERYes Who sets laser standards - ANSWERANSI
Inverse square law applies to - ANSWERRadiation, light, pressure waves, and electricity