Final answer:
The highest priority nursing diagnostic category for an older adult client who is dehydrated, has a wound, and is anxious about living alone is Fluid Volume Deficit (FVD).
Step-by-step explanation:
The highest priority nursing diagnostic category for an older adult client who is dehydrated, has a 3 x 2 cm wound on the lower extremity, and is anxious about living alone would be Fluid Volume Deficit (FVD).
Fluid Volume Deficit refers to the loss of fluid and electrolytes from the body, which can lead to dehydration. Dehydration can cause numerous complications and is especially concerning in the case of an older adult.
Some possible nursing interventions for a client with FVD include administering intravenous fluids, monitoring vital signs, assessing for signs of dehydration, and educating the client about the importance of fluid intake.