Which instruction is the most important for the practical nurse (PN) to reinforce in the discharge teaching of a 16-year-old who had an above-the-knee amputation (AKA)?

Do not use lotion on the residual limb.

Inspect the residual limb every day.

Lay prone for 30 minutes 3 or 4 times every day.

Air dry the residual limb for 20 minutes after washing it.