Final answer:
The nurse determines that the client with osteoporosis needs further instruction when the client suggests increasing her intake of pork, which is the option lowest in calcium. High calcium foods like dairy products, leafy greens, and sardines should instead be emphasized.
Step-by-step explanation:
The client with osteoporosis needs to increase her intake of calcium-rich foods. The food item among the options provided that is lowest in calcium and therefore necessitates further instruction from the nurse is pork. Foods that are high in calcium and should be consumed to help manage osteoporosis include dairy products like plain yogurt, cheese, and milk, as well as non-dairy sources such as leafy green vegetables like broccoli, kale, and fortified foods such as some fruit juices and cereals. Seafood, sardines, particularly those with soft bones, also provide a good amount of calcium and should be included in the diet.