Final answer:
The critical points for using a Bag-Mask Device include proper mask positioning, creating an adequate seal, and applying enough pressure for effective ventilation. Taken together, these ensure that the device functions effectively for offering respiratory support.
Step-by-step explanation:
The critical points of using a Bag-Mask Device include:Proper positioning of the mask on the faceAdequate seal between the mask and the face, anSufficient pressure to deliver adequate ventilation.Therefore, the correct answer would be 4) All of the above. It is crucial to ensure that the mask is appropriately positioned to cover the nose and mouth adequately. A good seal is necessary to prevent air from leaking during ventilation, which could reduce the effectiveness of the breaths delivered.
Lastly, applying sufficient but not excessive pressure is important for effective ventilation without causing injury or additional stress to the patient.Critical Points of Using a Bag-Mask DeviceProper positioning of the mask on the face: It is important to ensure that the mask covers both the nose and mouth properly and comfortablyAdequate seal between the mask and the face: A good seal is necessary to prevent air leakage and ensure effective ventilationSufficient pressure to deliver adequate ventilation: The bag should be squeezed with sufficient pressure to deliver enough air into the airwayThe answer to the question is 4) All of the above, as all these critical points are necessary for proper use of a bag-mask device.