Non-rebreather vs. BVM

Jasmine

Forum Ride Along
4
0
1
What are the key differences or when do you use a non rebreather vs a bag valve mask for ventilation on a patient?
 

Flying

Mostly Ignorant
571
369
63
Non-rebreather masks are not used for ventilation, they only really deliver oxygen if the person is already ventilating (breathing).

ventilations -> mechanically moving air
 
OP
J

Jasmine

Forum Ride Along
4
0
1
Non-rebreather masks are not used for ventilation.
so non-rebreathers are used for patients who are currently breathing and BVM are used for physical ventilations, basically your breathing for the patient
 

Flying

Mostly Ignorant
571
369
63
BVMs are just there to force gas in. I don't like the phrase "breathing for the patient", that's what ventilators do.

With the BVM you only perform part of the breathing cycle, the rebound of the patient's intercostal muscles and diaphragm do the rest of the work in exhalation.
That's why we generally equate adequate BVM breaths with chest rise and fall.

I'm being picky, you're right.
 

ThadeusJ

Forum Lieutenant
240
69
28
Also remember that non-rebreathers deliver about 60-85% oxygen and BVM's can deliver 100%. Because BVM's are more for CO2 removal, they can work perfectly fine without an oxygen source.

To clarify the above statement, BVM's do breathe for the patient as they are also known as manual resuscitators or manual ventilators. Mechanical ventilators (while fancy on breath delivery) also require the natural elastic recoil of the chest and lungs for exhalation. Ventilators don't "suck" the air back out of the lungs. All you can control is the inhalation aspect of the respiratory cycle. Non-rebreathers are only oxygen delivery devices.
 

nater

Forum Crew Member
49
15
8
They are most commonly used in the NICU, but oscillator vents do allow for active exhalation.
 

Carlos Danger

Forum Deputy Chief
Premium Member
4,250
2,929
113
They are most commonly used in the NICU, but oscillator vents do allow for active exhalation.
Eh, sort of but not really. In fact there is almost no inhalation or exhalation at all with HFOV.
 

Top