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vtec 575 final

Thomas Ch5: Workplace Safety

QuestionAnswer
The concentration of waste anesthetic gas in the workplace is determined by air sample analysis and is usually expressed in parts per million (abbreviated ppm).
National Institute for Occupational Safety and Health recommends that the concentration of any volatile gas anesthetic (including isoflurane, sevoflurane, and desflurane) not exceed 2 ppm when used alone
NIOSH National Institute for Occupational Safety and Health
The longer the anesthetic machine is in use the higher the waste gas concentration in the air in the room.
The short-term problems associated with breathing waste gas appear to arise from a direct effect of anesthetic molecules brain neurons
Long-term inhalation of high levels of waste gas may be associated with serious health problems, including reproductive disorders, liver and kidney damage, bone marrow abnormalities, and chronic nervous system dysfunction.
The function of a scavenging system is to collect waste gas from the machine and conduct it to a disposal point outside the building
A scavenging system has four basic components 1. The waste gas port 2. Transfer tubing 3. The interface 4. Gas evacuation system
Anesthesia presents several potential health risks to hospital personnel, including exposure to waste anesthetic gas and hazardous injectable agents and accidents associated with handling of compressed gas cylinders.
3. Exposure to waste anesthetic gas is associated with short-term problems such as fatigue, headache, drowsiness, nausea, depression, and irritability.
Long-term exposure to high levels of waste anesthetic gases may be associated with reproductive disorders, liver and kidney damage, and nervous system dysfunction,
6. Volatile waste anesthetic gases apparently do not have oncogenic (cancer-causing) effects.
The National Institute for Occupational Safety and Health (NIOSH) recommended exposure limit is 2 parts per million (ppm) for halogenated anesthetics
1. Waste anesthetic gases are a potential hazard to personnel, but problems that arise are only of long-term nature. false
2. Long-term toxicity of inhalation anesthetics is thought to be caused by the release of toxic metabolites during the breakdown of these drugs within the body. true
3. The volatile inhalant general anesthetic thought to be least toxic, because very little is retained and metabolized, is: isoflruane
4. In the United States, the National Institute for Occupational Safety and Health (NIOSH) recommends that the levels of waste anesthetic gases for anesthetics such as isoflurane and sevoflurane should not exceed ___ ppm. 2
5. As long as you can’t smell any waste anesthetic gas, you can be reasonably sure that the levels are below recommended exposure limits. false
6. Rooms in which animals are recovering from anesthesia may be highly contaminated with waste gas. true
7. Which of the following can be used effectively to monitor waste anesthetic gas levels? Passive dosimeter badge
8. How often should a test for low-pressure leaks be conducted? Each day that the machine is used
9. The safest way to transport a large compressed-gas cylinder, such as an oxygen tank, is by: Using a handcart
10. What is the minimum number of air changes per hour that should be available in a room in which waste anesthetic gases are present? 15
11. A technician may reduce the amount of waste gases by: Using cuffed endotracheal tubes Ensuring that the anesthetic machine has been tested for leaks Using an injectable agent rather than a mask or chamber
12. To conduct a low-pressure test on an anesthetic machine (with a rebreathing circuit), you must: Close the pop-off valve and occlude the patient end of the breathing circuit Compress the reservoir bag Pressurize the circuit with a volume of gas
Created by: Alex1324
 

 



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