Question

If a patient is in respiratory failure, how many ml of air should be given to a patient using a BVM with supplemental oxygen?

1) 700-1000ml per ventilation over 2 seconds
2) 600-800ml per ventilation over 1-2 seconds
3) 800-1200ml per ventilation over 2 seconds
4) 400-600ml per ventilation over 1-2 seconds

Answer 1

Option 2). The correct volume of air to be used with a BVM with supplemental oxygen for a patient in respiratory failure is 600-800ml per ventilation over 1-2 seconds to maintain adequate alveolar ventilation and avoid complications.

Step-by-step explanation:

The suggested volume is normally 600–800 ml per ventilation over 1-2 seconds when a patient is in respiratory failure and utilizing a BVM (Bag Valve Mask) with supplemental oxygen; therefore option 2 in the question corresponds to this recommended volume. These values are in line with current medical practices to provide safe and efficient alveolar ventilation and to avoid the potential for overinflation-related barotrauma or volutrauma. In order to prevent carbon dioxide buildup from hypoventilation (too little air) and cardiac output reduction from hyperventilation (too much air), it is crucial to modify the ventilation volume according to the patient's size and condition.