When a midstream urine sample reveals red and white blood cells, what is the nurse's first action?

When a midstream urine sample reveals the presence of red and white blood cells, it can be indicative of several conditions, such as infection or inflammation in the urinary tract. The nurse's first action should focus on addressing potential dehydration and ensuring the client remains adequately hydrated, which is critical in managing urinary conditions. Encouraging the client to drink at least 2.5 liters of fluid can help dilute the urine, potentially alleviate discomfort, and promote more effective flushing of the urinary tract.

In addition to hydration, increased fluid intake is beneficial for kidney function and can aid in reducing the concentration of irritants in the urine, which may decrease symptoms. This approach provides a supportive measure while further assessments or interventions, such as obtaining another sample or discussing symptoms in more detail, can be carried out.