What is the normal range for respiratory rate (RR) that is typically set on a ventilator?

The normal range for respiratory rate that is typically set on a ventilator is 8-12 breaths per minute. This range is considered appropriate for adult patients, as it aligns with typical physiological conditions. Maintaining a respiratory rate within this range helps ensure adequate ventilation and gas exchange while avoiding overventilation, which could lead to complications such as hyperventilation and respiratory alkalosis.

Setting the respiratory rate below this range, as seen in some other options, may not provide sufficient support for patients who are unable to initiate adequate breaths on their own. Conversely, setting the rate too high could result in excessive ventilation, which could compromise the patient's respiratory drive and increase the risk of lung injury due to barotrauma or volutrauma. Therefore, the 8-12 breaths per minute range strikes a balance that supports the patient's needs while minimizing the risk of secondary complications.