Ch 11 A Closer Look: Vitamin Deficiency Disease and Vitamin D

A vitamin is an organic compound that must be obtained from the diet and is needed to sustain life.

vitamin

A number of risk factors contribute to inadequate levels of vitamin D and increase the likelihood of developing a deficiency disease. Choose the image that depicts the individual at greatest risk for vitamin D deficiency.

John is a 30-year-old Caucasian man who spends most of his day working in an office building.

Given what you know about the characteristics of a deficiency disease, which of the following would be considered a deficiency disease resulting from inadequate levels of vitamin D? Check all that apply.

Osteomalacia; rickets

In order for this synthesis 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. Check all that apply.

Wearing protective clothing and sunscreen when outdoors; Having kidney disease

Marie is a 63-year-old African American woman from the Midwest. She is lactose intolerant and prefers staying indoors as opposed to going outside. Lately, she has had terrible bone and joint pain and a recent checkup confirms that Marie is deficient in vitamin D and has a disease called osteomalacia , or poor bone mineralization. This would be considered a primary deficiency that could be directly treated with vitamin D supplementation.

osteomalacia; primary; could

A vitamin deficiency is a lack or shortage of a particular vitamin, and prolonged insufficiency can eventually lead to a vitamin deficiency disease , characterized by harmful symptoms

deficiency; vitamin deficiency disease

Vitamins have many functions throughout the body. For example, vitamins C and E function as antioxidants, the B vitamins function as coenzymes, and vitamin D is important for calcium regulation.

vitamins C and E; B vitamins, and vitamin D

Decreased activation of vitamin D will result indecreased absorption of calcium in the small intestine and increased risk of inadequate bone mineralization.

decreased; increased

According to the animation, the active, or usable, form of vitamin D, is synthesized in the kidneys .

kidney