Final answer:
The statement about using a half alcohol and half water solution for sponging indicates successful teaching about non-medication methods to lower a child's temperature with febrile seizures. The correct option is D.
Step-by-step explanation:
After teaching the parents of a child with febrile seizures about methods to lower temperature other than medication, successful teaching is indicated by the statement that they will use a solution of half alcohol and half water when sponging him. This is because alcohol can help reduce fever by evaporating off the skin, which helps cool the child's body.
However, it is critical that these methods are used with caution and ideally under medical supervision, as cooling should be done gradually to avoid inducing shivering, which can actually raise the body temperature further. Other mechanisms the body employs to regulate temperature include increasing muscle activity to generate heat when cold (shivering) and inducing sweating to cool down when too warm.