Chapter 5: Oxygen Therapy
5.5 Oxygen Therapy Systems
Critical Thinking Exercises: Questions, Answers, and Sources / References
- Explain the difference between low and high flow oxygen systems.
Answer: low flow systems (cannula, simple masks, face tents) High flow oxygen systems (venturi mask – to concentrate oxygen; non rebreather, partial rebreather; optiflow)
Sources: Perry, A., Potter, P., Ostendorf, W. (2017). Clinical Skills and Techniques (9th ed.) Elsevier; Mosby.
Fisher & Paykel Health Care. (2018). Optiflow™ provides respiratory support via nasal cannula. Retrieved from https://www.fphcare.com/nz/hospital/adult-respiratory/optiflow/mechanisms-of-action/.
- The reservoir bag on a non rebreather mask and a partial rebreather mask must always be kept partially inflated. Why?
Answer: To prevent patient suffocation caused by high CO2 & inadequate oxygen
Source: Perry, A., Potter, P., Ostendorf, W. (2017). Clinical Skills and Techniques (9th ed.) Elsevier; Mosby.
- Why are non-rebreather masks not available on general nursing units?
Answer: because of risk of suffocation, chance of hyper oxygenation possible lack of humidity; the nurse / patient ratios are too high to allow sufficient observation of the patient to ensure their safety
Source: Perry, A., Potter, P., Ostendorf, W. (2017). Clinical Skills and Techniques (9th ed.) Elsevier; Mosby.
- As the home care nurse you often visit people receiving additional oxygen at home. Name 4 safety considerations to be included in your teaching. Answer:
- No smoking. Post no smoking signs in your home
- Keep at least 5 feet away from open flames (lit cigarettes, gas stoves, candles, lighted fireplaces)
- Do not use flammable produces (grease, oils, aerosol sprays, petroleum based lubricants)
- Store oxygen system away from open flammable items. Secure cylinders to prevent falling
- Have fire extinguisher available
- If using an oxygen concentrator:
- Avoid using an extension cord
- Store in an area that will allow proper air circulation and prevent overheating (not a closet)
- Store 12-18 inches from drapes or walls
Source: MedPro Respiratory care.(2012) Home oxygen safety. http://www.medprorespiratory.com/home-oxygen-therapy-bc/home-oxygen-safety/