Q: During bag-mask ventilation (BMV), what is the best way to reduce the likelihood of decreasing gastric inflation?
Answer: Squeezing the bag slowly over one full second reduces the likelihood of decreasing gastric inflation. A slowly delivered tidal volume prevents sufficient pressure to open the gastroesophageal sphincter.
It also helps to prevent a dramatic impact on the cardiac output of a patient.
Fast or Slow Rescue Ventilations: A Predictive Model of Gastric Inflation.
Fitz-Clarke JR1. Respir Care. 2018 May;63(5):502-509. doi: 10.4187/respcare.05620.