Practice Quiz

Veterinary Technician

Category - Anesthesia

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Technician Sally has a 4 kg patient that she needs to anesthetize. What are some of the reasons to use a non-rebreathing (NRB) system instead of standard breathing system, such as an F circuit?
  1. Decreased breathing resistance
  2. Less dead space
  3. Lower fresh gas rates
  4. Less waste of anesthetic inhalant
  5. A and B
Explanation
Answer: E - Two of the reasons to use a non-rebreathing system with a 4 kg patient is the decreased breathing resistance and less dead space for the patient. The NRB system bypasses the soda lime canister and flutter valves decreasing the resistance they would have with their limited tidal volume. Lower fresh gas rates and less waste of anesthetic inhalant are incorrect due to the need to have higher fresh gas rates to prevent the rebreathing of carbon dioxide due to the lack of carbon dioxide absorbent.
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