Question

1- Describe the issue with allowing all three valves in place on a nonrebreathing mask?

2-what is the effect of unheated tubing lenght on gas temperature delivered from a heated humidifier?

3-list six factors that can influnce the FiO2 a patient receives when using a nasal cannula ?

4- what is the benefit of using a heated vs. non-heated humidification system?

Answer 1

1. Describe the issue with allowing all three valves in place on a nonrebreathing mask?

Answer:-

A non-rebreather is a cover with a reservior bag appended and three one way valves (two on the facade of the veil, and a third between the repository sack and the veil) that enables the patient to breathe out CO2 out of the two openings on the cover, yet not have the option to take in air from the room through those ports. By not enabling the patient to take in air from the room, which would weaken the convergence of oxygen, this empowers the cover convey near 100% oxygen, as long as the liter stream is sufficiently high (10–15 L/min of oxygen). A similar cover with the valves expelled, is known as a fractional re-breather veil, which conveys around 50–60% oxygen. A breathing apparatus without any valves, and no supply pack, is known as a Simple Mask, and it conveys 40–half oxygen, contingent upon liter-stream. The expression "re-breather veil", is a misnomer, and doesn't really exist. It's critical that the liter-stream is never set lower than 5 L/min on any of these kinds of covers, since you need that a lot to flush breathed out CO2 from the veil, generally, the patient will re-inhale their very own breathed out CO2.

NBM mask represent100% oxygen and only outlet to CO2 out.

2-What is the effect of unheated tubing lenght on gas temperature delivered from a heated humidifier?

Answer:-Typically heated humidifier are sealed wire from one part of breathing circuit. But it can be prone to over heat and condensation.,leak in tubing .this will impacted as a additional cost as well..

3-List six factors that can influnce the FiO2 a patient receives when using a nasal cannula ?

Answer:-

1. 1-6 lpm
2. FIO2 0.24-0.44 (Approx 4% per liter flow)
3. FIO2 decrease as Ve invrease
4. FIO2 is the same level at all altitude
5. Liter flow rate nasal O2 doesn’t not equal FIO2
6. High FIO2doesnt effect hypoxia...

4- What is the benefit of using a heated vs. non-heated humidification system?

Answer:-

A-Less work breathing than HME.

B-Limited or no dead space

C-Clinically effective.

D-Achieve sufficient RH andAH

Have a nice day..!