Answer to Question 1
D
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A Incorrect. Sodium impairs calcium absorption, so the nurse instructs her to limit sodium to reduce bone loss.
B Incorrect. Alcohol impairs calcium absorption, so the nurse instructs her to avoid alcoholic beverages.
C Incorrect. Fiber inhibits calcium absorption.
D Correct. In osteopenia, bone metabolism is unbalanced because the action of osteoclasts is greater than the action of osteoblasts. To effectively treat osteope-nia, the balance between the activities of the bone cells must be shifted to more osteoblast (bone-building) activity because increasing osteoblast activity helps to reduce bone loss and at the same time to gain bone density. Lifting weights stimulates osteoblasts to build bone through the application of opposing forces on the bone and helps to achieve the woman's goal by increasing physical activ-ity (to stem bone loss) and by generating more bone (to gain bone density).
Answer to Question 2
A
These foods in these quantities supply 1204 mg of calcium. Administering estrogen can increase the risk of cancer and heart disease. Alendronate (Fosamax) must be taken with a full glass of water on an empty stomach after awakening. Afterward, the patient must sit upright and refrain from eating or drinking for 30 minutes. Alcohol and high amounts of protein and salt inhibit cal-cium uptake, whereas caffeine, excess fiber, and phosphorus (in the cola) promote calcium ex-cretion.