Final answer:
The nurse should advise the client to minimize or abstain from caffeine to reduce the occurrence of PACs and palpitations.
Step-by-step explanation:
The nurse should include in the client's teaching plan to minimize or abstain from caffeine. Premature atrial contractions (PACs) can be stimulated by certain drugs, including caffeine. By reducing or eliminating caffeine intake, the client may be able to decrease the occurrence of PACs and palpitations.