The Nurse Is Preparing to Suction a Patient with an Endotracheal

The nurse is preparing to suction a patient with an endotracheal tube. What should be the nurses first step in the suctioning process?

A) Explain the suctioning procedure to the patient and reposition the patient.
B) Turn on suction source at a pressure not exceeding $120 \mathrm{~mm} \mathrm{Hg}$ .
C) Assess the patients lung sounds and $\mathrm{SAO}_{2}$ via pulse oximeter.
D) Perform hand hygiene and don nonsterile gloves, goggles, gown, and mask.