Answer:
Risk for Deficient Fluid Volume
Explanation:
Diuretics are the drugs which are used in conditions like edema in which the main goal is to reduce extracellular fluid volume causing an increase in urine volume or flow causing natriuresis by blocking the transport functions of renal tubules.
As the diuretics are causing an increase in urine excretion, it may result in hypovolemia , there is also a high risk for deficient fluid volume, hence risk for deficient fluid volume would be an appropriate nursing diagnosis on which to base an educational plan