Final answer:
Feverfew may interact with naproxen as both can inhibit platelet aggregation and increase bleeding risk; other listed medications are unlikely to interact.
Step-by-step explanation:
If a nurse is assessing a client who has migraine headaches and is taking feverfew to prevent headaches, it is important to be aware of potential drug interactions with existing medications. Feverfew may potentially interact with naproxen, which is an nonsteroidal anti-inflammatory drug (NSAID). When feverfew is taken in conjunction with NSAIDs, there may be an increased risk of bleeding because both substances can inhibit platelet aggregation. The other medications listed - metoprolol, a beta-blocker; bupropion, an antidepressant; and atorvastatin, a statin - do not have well-known interactions with feverfew.