Exam 8: Vitamins Required for Calcified Structures

Each is a physiologic role of vitamin D,except one.Which is the exception?

Uncontrolled use of vitamin D supplements by older patients with osteoporosis can result in diminished bone mass because excess levels result in vitamin D intoxication.

Each is accurate regarding the relationship between vitamin D levels and periodontitis,except one.Which is the exception?

Most milk in the United States is fortified because the calcium and phosphorus content is beneficial for absorption and use of vitamin A.

Although limited amounts of vitamin K are stored in the body,a shortage of vitamin K is unlikely because like vitamin D it is provided by sunlight.

For patients with osteomalacia,a health care provider may recommend a vitamin D supplement to increase calcium absorption.However,for women of childbearing age,supplementations should be minimized because of interference with hormonal balances.

Each is a fat-soluble vitamin,except one.Which is the exception?

Large amounts of vitamin A supplements can exceed the storage capacity of the kidneys.When present in high concentrations,unbound vitamin A causes damage to cell nuclei,especially in the white blood cells and lysosomes.