The nurse is performing an otoscopic examination on an adult. Which of these actions is correct?

A. Once the speculum is in the ear, releasing the traction: Releasing traction too soon can lead to collapse of the ear canal, obstructing the view of the tympanic membrane. Maintaining traction throughout the examination ensures a clear view and prevents discomfort. B. Pulling the pinna up and back before inserting the speculum: The correct technique for an adult involves pulling the pinna up and back to straighten the external auditory canal, allowing for an unobstructed view of the tympanic membrane. In children under three, the pinna is pulled down and back due to the more horizontal orientation of the ear canal. C. Tilt the person's head forward during the examination: The head should remain upright or slightly tilted away from the examiner to provide better access to the ear canal. Tilting forward is unnecessary and may not improve visualization. D. Using the smallest speculum to decrease the amount of discomfort: A speculum that is too small may not provide a sufficient view of the tympanic membrane. The largest speculum that comfortably fits should be used to allow for optimal visualization.