A nurse is preparing to teach a new client with rheumatoid arthritis about their prescribed medication, etanercept. Which client statement indicates the nurse's teaching was effective regarding the medication's action and necessary precautions?

It is safe to take this medication with over-the-counter herbal supplements like echinacea to boost my immune system.

I can stop taking the medication if I feel any joint pain or swelling, since that means it is not working.

I should monitor for signs of infection and report them immediately because this medication suppresses my immune system.

I should avoid all vaccinations while on this medication, including flu and pneumonia vaccines.