When administering ear drops to a child under 3 years old, what is the correct way to straighten the ear canal?

The pediatric nurse must understand anatomical differences in the auditory canal based on age. To ensure effective medication delivery, the ear canal must be straightened according to the child's developmental stage to accommodate the shorter, wider, and straighter eustachian tubes. Choice A rationale Pulling the auricle straight back is an incorrect technique for any age group. It fails to align the external auditory meatus with the tympanic membrane, hindering the gravity-assisted flow of medicinal drops into the targeted middle ear area. Choice B rationale In children under age three, the ear canal curves upward. Pulling the pinna down and back straightens this anatomical curve, allowing the medication to reach the eardrum effectively while preventing injury to the delicate external auditory structures. Choice C rationale Failing to manipulate the auricle results in medication pooling in the outer ear canal. Without straightening the canal, the fluid cannot bypass the natural anatomical bends, rendering the treatment ineffective for resolving internal infections or inflammation. Choice D rationale Pulling the auricle upward and outward is the standard technique for adults and children over age three. In younger infants, this maneuver actually further occludes the canal due to the specific downward slant of their developing cartilage.