Final answer:
The three contraindications for using a pocket mask are facial trauma, neck or spine injuries, and excessive vomit or secretions in the patient's mouth.
Step-by-step explanation:
There are three contraindications for using a pocket mask:
- Presence of facial trauma or major facial injuries. In such cases, the mask may not fit properly or cover the face adequately to create an airtight seal for effective resuscitation.
- Known or suspected neck or spine injuries. When there is a risk of cervical spine injury, using a pocket mask can potentially exacerbate the injury and cause further harm.
- Excessive vomit or secretions in the patient's mouth. If there is a significant amount of vomit or secretions, using a pocket mask may impede ventilation and compromise the airway.