The requirement for vitamin D increases with age because? the skin's ability to make it from sunlight decreases the elderly tend to be indoors more the kidneys lose their ability to convert it the active form all of the above answers are correct
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The elderly have which of the following issues that contribute to osteoporosis? a. The kidneys are less efficient at converting vitamin D. b. The kidneys are less efficient at retaining calcium. c. The skin is less efficient at synthesizing vitamin D. d. All of the above e. None of the above
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Vitamin D contributes to bone health by maintaining blood calcium and phosphorus levels within the normal range. Unlike any other vitamin, the body can produce vitamin D from exposure to ultraviolet light. From the list below, choose all the correct statements about vitamin D. Select all that apply. a. The liver converts cholecalciferol into the active form of vitamin D. b. Factors that enhance UV-light-mediated vitamin D synthesis include living north of 37° latitude, having darker skin pigmentation, and being obese. c. Vitamin D promotes absorption of calcium and phosphorus from the small intestine. d. Vitamin D decreases calcium reabsorption by the kidneys. e. Vitamin D is necessary for the normal calcification of bone.
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Part 1. Peggy is a 68-year-old woman who has worked long hours indoors her entire life. A recent checkup indicated that she was severely deficient in vitamin D due to inadequate intake and a lack of sun exposure. Following these findings, the doctor diagnosed Peggy with a (1) primary deficiency of vitamin D, resulting in (2) osteomalacia or poor bone mineralization. Her doctor explained that because of this vitamin deficiency, Peggy was not able to maintain appropriate levels of calcium, which had resulted in hyperparathyroidism. In this example, hyperparathyroidism (3) is a vitamin D deficiency disease. answer choices to fill in the blank: 1. (A) primary or (B) secondary 2. (A) rickets or (B) osteomalacia 3. (A) is or (B) is not Part 2. In order for the synthesis of vitamin D to occur, a series of steps are necessary and any disruption in this process can result in a deficiency of vitamin D. With this in mind, choose the situations or conditions that could contribute to a vitamin D deficiency. Choose all that apply. (a) Living in a region without a lot of sunlight (b) Having a lighter skin pigmentation (c) Limited or no use of sunscreen outdoors (d) Having liver disease
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