A nurse is providing a class on osteoporosis at the local seniors' center. Which statement related to osteoporosis is most accurate?

Choice A reason: Including an average daily intake of 300 mg of calcium is not a sufficient measure to prevent osteoporosis, as it is below the recommended dietary allowance (RDA) for calcium, which is 1000 mg for adults aged 19-50 years, and 1200 mg for adults aged 51 years and older. Calcium is an essential mineral for bone health, as it helps to build and maintain the bone density and strength.

Choice B reason: Walking 20-30 minutes three days a week is not an optimal measure to prevent osteoporosis, as it is below the recommended physical activity guidelines, which suggest at least 150 minutes of moderate-intensity aerobic exercise per week, and at least two sessions of muscle-strengthening activities per week. Physical activity is beneficial for bone health, as it stimulates the bone formation and reduces the bone loss.

Choice C reason: Engaging in isometric exercise 20-30 minutes weekly is not an effective measure to prevent osteoporosis, as it is not the best type of exercise for bone health, and it is not performed frequently enough. Isometric exercise is a form of exercise that involves contracting the muscles without moving the joints, such as holding a plank or a wall sit. Isometric exercise does not provide enough mechanical stress or load to the bones, which is needed to stimulate the bone remodeling and growth.

Choice D reason: Including adequate intake of vitamin E is not a relevant measure to prevent osteoporosis, as it is not a major nutrient for bone health, and it has no direct effect on the bone metabolism. Vitamin E is an antioxidant that helps to protect the cells from oxidative stress and inflammation, which may have some indirect benefits for the bone health, but it is not a key factor. Vitamin E is also not a common deficiency, and it can be obtained from various foods, such as vegetable oils, nuts, seeds, and green leafy vegetables.

Choice A reason: Transferring from sitting to standing position is not a high-risk activity for hip dislocation, as long as the client follows the proper precautions, such as keeping the operated leg slightly forward, using a chair with armrests, and avoiding twisting or pivoting the hip.

Choice B reason: Straining during a bowel movement is not a direct risk factor for hip dislocation, but it may cause constipation, which is a common problem after surgery. The nurse should educate the client on the importance of adequate hydration, fiber intake, and stool softeners to prevent constipation and reduce the need for straining.

Choice C reason: Bending down to put socks on is a risky activity for hip dislocation, as it violates the hip precautions of avoiding flexing the hip more than 90 degrees, adducting the hip, or internally rotating the hip. The nurse should instruct the client to use assistive devices, such as a sock aid or a long-handled reacher, to put on socks or shoes without bending the hip.

Choice D reason: Turning in bed with an abductor pillow in place is a safe activity for hip dislocation, as the abductor pillow helps to maintain the alignment and stability of the hip joint. The nurse should teach the client to use the abductor pillow while in bed for the first few weeks after surgery, and to turn from side to side with the assistance of a caregiver.

Choice E reason: Crossing the legs or ankles is a dangerous activity for hip dislocation, as it causes the hip to move out of its normal position. The nurse should remind the client to keep the legs apart at all times, and to use a pillow or a wedge between the legs when lying on the side.