What is an expected finding when a client is treated with NSAIDs for an acute flare-up of gout?

A dramatic decrease in pain within 24 hours is indeed an expected finding when a client is treated with NSAIDs for an acute flare-up of gout. NSAIDs are effective anti-inflammatory medications that help relieve the pain and inflammation associated with gout attacks. They work by inhibiting the enzymes responsible for inflammation, which can result in significant pain relief relatively quickly, often within a day of starting treatment. This fast action is particularly valuable in managing the acute symptoms of gout, allowing the patient to experience improved comfort and mobility shortly after beginning NSAID therapy.

In contrast, the other options represent findings that are less likely or would indicate complications rather than expected outcomes. For instance, severe abdominal pain following medication administration could suggest an adverse reaction to the medication or gastrointestinal side effects, which are not typical outcomes. Decreased plasma uric acid levels would generally be expected from urate-lowering therapies rather than NSAIDs, which do not affect uric acid levels directly but instead focus on symptom relief during a flare. Low-grade fever and rash could indicate an allergic reaction or an infection rather than an expected effect of NSAIDs for gout treatment.