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What is the function of an AMBU bag?

  1. To ventilate a patient manually

  2. To carry medical supplies

  3. To monitor heart rhythm

  4. To achieve patient sedation

The correct answer is: To ventilate a patient manually

The function of an AMBU bag, also known as a Bag-Valve-Mask (BVM), is specifically to ventilate a patient manually. This device is used in emergency situations to provide positive pressure ventilation to individuals who are not breathing or who are breathing inadequately. The AMBU bag allows healthcare providers to deliver air or oxygen directly into the lungs through a facemask fitted over the patient's mouth and nose, effectively supporting the patient's respiratory function until more advanced medical care can be provided. While carrying medical supplies is an important aspect of emergency care, it is not the function of an AMBU bag. Monitoring heart rhythm pertains to equipment like an electrocardiogram (ECG), and achieving patient sedation involves the use of anesthetic medications, neither of which are related to the primary purpose of the AMBU bag.