4 Ventilation Support Free Online FlashCards

How do oxygenation and ventilation differ?

Oxygenation is oxygen entering the blood; ventilation is air movement into and out of the lungs and carbon-dioxide removal.

What ventilation rate is reasonable for an adult with a pulse in respiratory arrest?

For an adult with a pulse in respiratory arrest, one breath every 6 seconds, or 10 breaths per minute, is considered reasonable.

How should a BVM breath be delivered?

Squeeze the bag smoothly, typically over about 1 second, using only enough volume to produce visible chest rise.

How can two rescuers divide BVM tasks?

One rescuer can hold a two-handed mask seal and lift the jaw while the other squeezes the bag; this often works better than one-handed ventilation.

How does suspected neck injury change airway-opening technique?

Without suspected neck injury, use a head-tilt–chin-lift; with suspected cervical-spine injury, minimize neck movement and use a jaw thrust when trained.

How should a BVM mask fit and be positioned?

Choose a mask that covers the nose and mouth without covering the eyes, then center it over the bridge of the nose and chin.

What should the rescuer lift to seal a BVM mask?

Press the mask into a seal while lifting the bony jaw toward it; avoid pressing the soft tissue beneath the chin, which can obstruct the airway.

What chest movement suggests effective ventilation?

Visible, symmetrical chest rise with each breath and fall during exhalation is a practical immediate check of ventilation.

Can supplemental oxygen replace effective breaths?

Supplemental oxygen can improve oxygenation, but it cannot replace effective breaths when breathing is absent or inadequate.

What protocol guides breaths during adult cardiac arrest without an advanced airway?

For cardiac arrest without an advanced airway, follow the CPR compression-to-ventilation protocol, commonly 30 compressions to 2 breaths.

What can excessive or rapid BVM breaths cause?

Excessive or rapid breaths can inflate the stomach, cause regurgitation and aspiration, injure the lungs, and reduce blood flow during cardiac arrest.

What should happen after a BVM breath produces chest rise?

After the chest rises, release the bag fully and allow the chest to fall before giving the next breath.