Mechanical Vent 2 Exam 2 Practice

The key idea here is how the ventilator care bundle reduces ventilator-associated pneumonia by minimizing aspiration, bacterial burden, and unnecessary ventilator exposure. Elevating the head of the bed to about 30–45 degrees helps prevent aspiration of oropharyngeal secretions into the lungs, which is a major route for VAP. Daily sedation vacations shorten the time a patient is on the ventilator by allowing ongoing assessment for readiness to wean, so there are fewer days at risk for pneumonia. Oral care with chlorhexidine lowers the oral microbial load, reducing the chance that aspirated bacteria seed the lungs.

Increasing circuit changes, however, isn’t part of the bundle. Repeatedly changing or disconnecting the ventilator circuit can disrupt the sterile field, increase the risk of contamination, and doesn’t have proven benefit for preventing VAP. Bundles focus on keeping the circuit intact and minimizing unnecessary interruptions rather than increasing changes.

So, the practice not included in the VAP prevention bundle is increasing circuit changes.