Final answer:
The nurse should warn the client about the risk of Gastrointestinal bleeding, an adverse effect associated with the daily use of ibuprofen, which is an NSAID.
Step-by-step explanation:
The occupational health nurse should counsel the client about the risk for Gastrointestinal bleeding as an adverse effect of taking ibuprofen daily. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can cause stomach bleeding, especially in those who are older, take blood thinners or steroids, or have a history of stomach ulcers. While NSAIDs can reduce pain and inflammation, their long-term use is associated with an increased risk of gastrointestinal ulcers and bleeds, which can be severe and potentially life-threatening.