using hair spray while wearing a hearing aid - The five branches of pharmacology - inspect the foot for signs of skin breakdown

- The nurse should instruct the patient to avoid using hair spray while wearing a hearing aid.

- The five branches of pharmacology are pharmacokinetics, pharmacodynamics, pharmacotherapeutics, toxicology, and pharmacognosy.

- The nurse should remove heel protectors every 8 hours to inspect the foot for signs of skin breakdown.