In which phase of the 7 P's is the use of 10-15 lpm of O2 applied?

The use of 10-15 liters per minute of oxygen is applied during the preoxygenation phase of the 7 P's. This phase is critical in preparing a patient for intubation, as it involves maximizing the oxygen saturation in the patient's lungs and subsequently increasing their oxygen reserve. Preoxygenation reduces the risk of desaturation during the intubation process, which is particularly important because it can be a time-consuming procedure where a patient may not be able to ventilate adequately. Therefore, administering high-flow oxygen effectively enhances the oxygen levels in the blood during this crucial time.

In contrast, the other phases, such as protection, post-intubation management, and pretreatment, serve different purposes. Protection generally involves securing the airway and ensuring that the environment is safe for the patient and provider. Post-intubation management focuses on maintaining control of the airway and monitoring the patient's vital signs after intubation has occurred. Pretreatment involves administering medications to prepare a patient for intubation, particularly in cases where airway management might be challenging. Thus, preoxygenation stands out as the phase specifically dedicated to optimizing oxygen delivery before the actual intubation takes place.