Because the nasal cavity is considered unsterile,instruments entering this cavity do not have to be sterile,but can be simply clean.

Question

Quizplus · Accepted Answer

Paranasal sinuses and tissues underlying the mucosa are sterile;therefore instrumentation should be sterile even though the nasal cavity is a contaminated area because the instruments are entering a vascular bed.Venous drainage could easily transport microorganisms and cause an intracranial infection.

Because the Nasal Cavity Is Considered Unsterile,instruments Entering This Cavity