Final answer:
The 72-year-old client with diabetes and hypertension should be placed in category 3 on Dunn's health grid, which is 'Protected poor health in a favorable environment,' due to his personal health choices in the context of a supportive environment.
Step-by-step explanation:
The nurse should place the 72-year-old client with uncontrolled diabetes and hypertension in category 3) Protected poor health in a favorable environment on Dunn's health grid. This assessment is based on the client's poor health status, given his uncontrolled chronic conditions. However, he lives in a supportive and healthy environment where his family encourages healthy eating and an active lifestyle. Despite this favorable environment, the client chooses to engage in unhealthy eating habits, favoring fast food over the healthier options provided by his family, and prefers not to be active.