When assessing a client at the community health clinic with a history of hypertension, the nurse notes 2+ pitting edema in both ankles. The client has a history of gastroesophageal reflux disease (GERD) and depression. Which intervention is most important for the nurse to implement?

The new finding of bilateral pitting edema in a client with hypertension is a key indicator of potential fluid retention, which could signal worsening cardiac or renal function, or a significant side effect of medication. Many common over-the-counter medications, particularly nonsteroidal anti-inflammatory drugs (NSAIDs) used for pain or inflammation, can cause sodium and fluid retention, elevating blood pressure and exacerbating edema. This is highly relevant given the client's comorbidities; NSAIDs can aggravate GERD, and some cold medications can interact with antidepressants. Reviewing OTC medications is a critical, immediate assessment step to identify a potential and reversible cause before escalating care. While exercise (A) and diet (B) are important for long-term management, they do not address the acute new symptom. The edema alone, without other acute distress symptoms, does not typically warrant immediate emergency transport (C) as a first action.