Dietitian CE

Vitamin D Absorption in Those With Malabsorption

1. Vitamin D deficiency has been proposed to contribute to the development of intestinal bowel diseases such as:

A. Crohn's disease B. Steatorrhea C. Ulcerative colitis D. All of the above

2. People who have intestinal bowel diseases have a reduced absorption of vitamin D3 through the intestine.

A. True B. False

3. When sprayed inside the mouth, the fine micro sized droplets of vitamin D3 are believed to be quickly and completely absorbed through the buccal mucosa into the numerous capillaries and veins lying close to the tissue surface.

A. True B. False

4. The oral soft gelatin capsule was more effective at increasing mean 25(OH)D levels as compared to the buccal spray.

A. True B. False

5. All of the following are true with regard to serum concentrations of 25-hydroxyvitamin D, except for:

A. It is a good indicator of long term vitamin D levels in the body. B. It is sensitive to single doses of vitamin D. C. It does not rise out of the normal range unless doses of vitamin D are chronically administered. D. All of the above are true.

6. In patients with intestinal malabsorption, the buccal spray increased serum 25(OH)D by:

A. 117.8% B. 43% C. 36% D. 22.5%

7. Increase in serum 25(OH)D after supplementation is inversely related to baseline 25(OH)D concentration.

A. True B. False

8. The buccal spray formulation was able to increase mean serum vitamin D3 concentration significantly higher as compared to the soft gelatin capsule in which group?

A. Healthy subjects B. Patients with intestinal malabsorption syndrome C. Both (A) and (B) D. None of the above


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