QUESTIONS

1. How should volatile agents be stored?
2. How should gas cylinders be stored?
3. How should anaesthetic circuits be cleaned and stored?
4. What is the procedure for the cleaning of endotracheal tubes?
5. Explain the importance of good ventilation and an efficient scavenge system when inhalation agents are employed.
6. What items should be close to hand on the anaesthetic trolley and why?
7. List 6 important checks to be made to the anaesthetic machine prior to use.
8. In addition to your answers to Q7, list 6 actions that should be carried out on a daily basis to maintain equipment used in gaseous anaesthesia.
9. How should the anaesthetic machine be cleaned?
10. How frequently should professional servicing of the anaesthetic machine be performed?
11. Describe a pulse oximeter.
12. Describe a laryngoscope.
13. Describe the 4 types of scavenge system in use in veterinary practice; which is the most efficient?
14. How would you gauge the content of gas cylinders, soda lime canisters, charcoal absorbers and volatile agent levels?
15. Describe the function of the following parts of the anaesthetic machine/circuit: i) Expiratory valve. ii) Flow meter. iii) Oxygen flush. iv) Reducing valve. v) Vaporiser.
16. What is meant by "co-axial" and which circuits possess this property?
17. What is the Magill circuit also known as?
18. In which circuit might a Jackson Rees modification be employed?
19. List circuits suitable for cats and small dogs.
20. List circuits suitable for medium to large dogs.
21. What are the gas flow rates required for closed circuits?
22. What is meant by the term "circuit factor"?
23. State the circuit factors for the following circuits: Ayres T piece, Bain (Mapleson D, E and F), Lack, Magill.
24. Describe the modified Lack circuit, and explain how it differs to the standard Lack circuit.
25. Nitrous oxide can be safely used in semi-closed (non-re-breathing) circuits, but must be used with caution in closed (re-breathing) circuits. What must be measured if nitrous oxide is employed within a closed circuit and why?
26. What is intermittent positive pressure ventilation?
27. Describe how the Bain Mapleson D, E and F circuits differ.
28. What is meant by the term "tidal volume"?
29. What is meant by the term "minute volume"?
30. How would you work out the gas flow rate for a 4kg cat with a respiratory rate of 20 breaths per minute (an Ayres T piece is to be used)?
31. How would you work out the gas flow rate for a 20kg dog with a respiratory rate of 10 breaths per minute (a Magill circuit is to be used)?
32. If nitrous oxide is to be used, what ratios of oxygen to nitrous are suitable?