BVM Tips

Question 1

Squeezing the bag: volume

Answer 1

Too much volume could lead to barotrauma, hyperinflation of the lungs, increased intrathoracic pressure, decreased venous blood return to the heart
* most sick people rely on adequate pre load, killing it with the bvm could hurt patient
Barotrauma: injury caused by a change in air pressure.
Atelectasis: Alveolar collapse

Question 2

Squeezing the bag: pressure/speed

Answer 2

Air goes into trachea and esophagus.
Air into stomach Results in gastric distention.
Gastric distention :
1. Patients vomit when stomach is filled with air
2.filling stomach with air causes it to compress the diaphragm and inhibit lung expansion

Question 3

Squeezing the bag: rate

Answer 3

Maintain an appropriate rate by monitoring ETC02
ETC02 rage 35-45 mmHg
If you are going to fast the ETC02 will decrease
If you are going to slow the ETC02 will increase

Question 4

PEEP (positive end expiratory pressure)

Answer 4

Amount of pressure maintained in the lungs and airways at the end of exhalation

• pressure maintained by the glottis and upper airway structures
• pressure allows the alveoli to remain inflated and not collapse during exhalation