The client with renal failure-rationale: the causes of excess fluid volume include decreased kidney function, congestive heart failure, the use of hypotonic fluids to replace isotonic fluid losses, excessive irrigation of wounds and body cavities, and excessive ingestion of sodium. the client taking diuretics, the client with an ileostomy, and the client who requires gastrointestinal suctioning are at risk for deficient fluid volume.test-taking strategy: use the process of elimination and focus on the subject, excess fluid volume. read each option and think about the fluid imbalance that can occur in each. the clients presented in options a, c, and d lose fluid. the only condition that can cause an excess is the condition noted in option b. if you had difficulty with this question, review the causes of excess fluid volume.