Nurse prepares to suction pt with new trach. Which action indicates a break in proper technique?
A. Nurse sets suction at 120mmHg, obtains #14 French suction cath
B. Nurse inserts suction cath until resistance met, then applies intermittent suction as cath withdrawn
C. Nurse suctions mouth before suctioning trach to ensure a patent airway
D. Nurse administers oxygen via ambu bag 100% oxygen prior to suctioning