A bag-mask is a medical device designed to ventilate a patient in respiratory arrest.
It must be on hand in an emergency department of the hospital or an ambulance.
It can be used before or after intubation while waiting for a mechanical respirator.
It can be used in CPR.
The bag-mask is preferably connected to a source of oxygen.
To use it requires 2 hands:
The right-hand holds the ball and exerts pressure with the 4 fingers to push the air (press with the thumb is an error).
The left hand applies the mask to the mouth and the nose, keeping a good seal, then putting the hand on the chest of the victim to check if there is an expansion/shrinkage of the rib cage due to the entry of the air.
Friends can influence you to do things you don’t want to do or don’t feel comfortable with bc you want to fit In.
Friendships are important to a teenager because they have people their own age to relate to and go to for advice and experience their stage of life with
Friendships can affect a teenagers mood/ way of thinking by how positive and it negative the friendship is.
Okay, so there are four ”Valve’s” in the heart
The; Aortic valve, the Pulmonary valve, Tricuspid valve, and the Mitral valve.
Hopes this answers your question.
Just look at the options it gives you and press the one that is not one of these options.