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14 Cards in this Set
- Front
- Back
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What are 3 major risk catergories associated with Veterinary Anesthesia?
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1. Hazards of Waste Anesthetic Gas
2. Safety in Handling Compressed Gas Cylinders 3. Hazards of Potent Injectable Agents |
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What does the term Waste Anesthetic Gas refer to?
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Refers to Nitrous Oxide, Halothane, Isoflorane, and other volatile anesthetic vapors that are either breathed out by a patient or that escape from a anesthetic machine.
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How would a person get exposed to Waste Anesthetic Gas?
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*Breathed in by working around anesthetized/recovering animals.
*During emptying/filling of vaporizers. *Exposure from accidental spill of liquid anesthetic. |
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What are the short term problems associated with being exposed to Waste Gas?
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-Fatigue
-Headache -Drowsiness -Nausea -Depression -Irritability (these will resolve spontaneously) |
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What types of long term problems can develop from being exposed to Waste Gas?
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-Reproductive disorders
-Liver damage -Kidney damage -Bone Marrow abnormalities -Chronic Nervous System dysfunction |
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What does current evidence say about the risk of developing long term problems from Waste Gas exposure?
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Current evidence suggests that the risk of these disorders developing in a standard hospital setting is NOT HIGH.
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How can you reduce exposure to waste gas? Name 3 ways:
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1. Use a Gas Scavenging system
2. Test equipment for leaks 3. Use procedures that minimize exposure to waste gas |
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Whats the difference between an Active and a Passive Scavenging system?
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-ACTIVE systems: use suction created by a vaccum pump or fan to draw gas in.
-PASSIVE systems(what we use): use the positive pressure of the gas in the machine to push gas into the scavenger. |
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What are some of the common problems that can result in waste gas leakage?
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1. gas lines not tight/secure
2. seals joining yokes worn, missing, out of position 3. covering over valve not closed tightly 4. CO2 canister not sealed 5. pop-off valve/scavenger connectionnot airtight 6. holes in hoses, reservoir bag, endotrac. tube not secur. 7. vaporizer cap was not replaced |
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Routinely Perform Leak Tests!
Here are 2 types: |
1. High Pressure Tests: between gas tanks and the flowmeter, where pressure is 50 psi.
2. Low Pressure Tests: from the machine itself; may arise in any part of the machine or breathing circuit that does not fit together or there is a hole. |
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Describe some of the anesthetic techniques/procedures that can help control the amount of waste gas released into the environment...... Many more...
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1. Use caution w/ Chamber inductions
2. Avoid Masks to maintain anesthesia 3. Use Cuffed tubes when possible 4.Adequate ventalation 15 air changes/hr. 5. Closed rebreathing minimizes waste gas pollution 6. don't turn on vaporizer/flowmeters until connected to tube and cuff 7. Don't release reservoir bag contents into room air. 8. Inspect equipment often 9. Fill vaporizers at end of day 10. Turn off when not in use |
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What are some of the major safety concerns about handling compressed gas cylinders? Name 3:
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*although not flammable....
-Support Combustion -Causes fuels to burn readily -Potential for fire wherever used |
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What are the safety precautions that should be taken when handling these cylinders?
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-No flames or sorces of ignition in rooms stored/used
-Smoking prohibited -turn on slowly w/ proper wrench -always chain/belt to wall -always store upright position -store away from emerg. exits -move w/ hand cart -keep empty/full tanks seperate -label appropriately |
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Accidental exposure to Injectable Agents.......
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*any drug handled in injectable form poses risk to the handler. Accidental contact in eyes, MM's, or through needle stick. Follow appropriate safety precautions/procedures!!!
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