Anesthesia gas
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38 terms
Terms | Definitions |
|---|---|
 store and delivers oxygen, vaporizes liquid anesthesia and mixes wiht oxygen, and removes exhaled gases | functions of the anesthesia gas machine |
| disposes exhaled gases | scavenger |
| removes carbon dioxide | absorber canister |
| a green tank/white, compressed gas, has a pin index and pressure gauge | oxygen tank |
| used so only the correct sized cylinder will ft into the yoke | pin indexed |
| 2200 psi | "E" cylinder holds- |
| indicates the psi present in a tank | pressure gauge |
| psi x .3 = | # liters of oxygen in tank |
| full oxygen tank has how many liters | 2200 psi x .3 = 660 liters |
| this indicates how many liters/minutes of oxygen are flowing to the animal | oxygen flowmeter |
| 100-200 psi | this is when you change oxygen tanks |
| a blue tank, not seen often, pressure gauge measures gas portion not liquid portion | nitrous oxide tank |
| 18 # | full tank weighs |
| 13 # | empty tank weighs |
| 5 # | weigt f liquid/gas component |
| < 500 psi | change nitrous oxide tank |
| has a level window, fill port, measures the % of anesthesia gas mixed with the oxygen as it passes out | vaporizer |
| liquid--> vapor | oxygen flows by it |
| inorder for the vaporizer to work | oxygen flowmeter must be on |
| direct, indirect | types of vaporizers |
| very precise, adjusts for oxygen flowrate, fewer mistakes. (out of circuit) | Direct vaporizer |
| allows oxygen to by-pass vaporizer, oxygen goes to rebreathing bag then to the patient | oxygen flush valve |
| non-rebreathing, rebreathing | 2 types of breathing circuits are |
| breathing circuit that doesn't rebreath gases (made for patients <15 # | non-rebreathing |
| a breathing circuit that constantly reuses oxygen and anesthetic gas, removes carbon dioxide ad recycles exhaled gases | rebreathing (circle systems) |
| capacity of 1-2 liters, stores gases, easier to breathe from reservoir, allows patient to be bagged, and respiratory monitoring | reservoir bag |
| endotracheal tube cuff not inflated properly, endotrach tube too small in diameter, tube not in trachea | decreased movement of bag |
| prevents atelectasis, flushes out CO2, use CPR, perform every 5 min during long procedures | bagging patient |
| If oxygen flow rate too high, or reservoir bag is too large, or pop off valve is not open enough then | bag is over filled |
| causes injury to lung alveoli | over fill of bag |
| If oxygen flow rate too low, oxygen tank empty, reservoir bag too small, pop off valve open too much then | under filled bag |
| one way valve | inhalation flutter valve/tubing and exhalation flutter valve/tubing |
| tubing that connects to the endotracheal tube | Y-piece |
| gives pressure relief to the system, allows waste gases to leave the system and enter the scavenger system, close to bag animal; then reopen | pop off valve |
| allows waste gases to leave the system and enter the scavenger system | pop off valve |
| contains soda lime, has a moisture relief valve | carbon dioxide absorber cannister |
| soda lime + carbone dioxide = | heat and color change to purple |
| on top of CO2 absorber, indicates pressure in airways and lungs | pressure manometer |
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