Which Precautions Are Most Important to Teach the Caregiver of a Home

Which precautions are most important to teach the caregiver of a home care patient who is prescribed nitroglycerine patches? (Select all that apply.)

A) Remove old patches before applying new ones.
B) Before applying a new patch, dab a little on your tongue to check for a tingling sensation that indicates the drug is active.
C) If a rash develops under a patch, discontinue the drug.
D) Rotate the placement of the patch to new areas.
E) Use sterile technique when applying patches.
F) Do not apply patches to areas where the skin is open or irritated.
G) Keep the patches in the refrigerator until they are used.
H) Return old patches back to the pharmacy for refilling.