Final answer:
The incorrect patient statement for administering ear drops in adults is to 'pull the pinna down and back', which is the technique for children, not adults.
Step-by-step explanation:
The question concerns finding the inappropriate patient statement following a nurse's instruction for administering ear drops for otitis media treatment. The statement that indicates a need for additional teaching is "I will pull the pinna down and back to administer the drops." This method is correct for infants or children under 3 years of age, but for an adult, the proper technique is to pull the pinna up and back to straighten the ear canal and facilitate the entry of drops. Placing ear drops in warm water before administration, placing a cotton ball after administration, and gently moving the head back and forth are all appropriate steps that may be advised.