Before the operation, every patient should have an appropriate bowel preparation. They are recommended to eat lightly for 3 to 5 days before the operation. During this span of time, the amount of fiber should be lessen. Drinking plenty of fluids is to be done up to the day of operation. All products with aspirin should not be taken. After the operation, clients are to be admitted for about 3-5 days. After released, no lifting or straining should be allowed and they can only go back to work after 2 weeks.
When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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The answer is <em>All of the choices are correct</em><em> </em><em>.</em><em> </em>
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Answer:
The acronym FDA stands for Food and Drug Administration
Explanation:
The Food and Drug Administration (FDA) is an agency that is responsible for the control, review and acceptance of all products that have to do with food and health of humans and animals. FDA controls drugs, biological products —including blood products— medical equipment and material, and food, both for human and animal use.
FDA is based and operates in the United States and reports to the Department of Health and Human Services. The scope of regulations issued by FDA is wide, being accepted in other countries as part of their drug and food control programs.
