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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he nurse should instruct the patient to take the entire prescribed course of medication to prevent the ... The patient's prescriber has ordered antibiotic combination therapy. ... Fever of unknown origin does not necessarily require two different antibiotics. .... The patient is receiving penicillin for treatment of an infection.
"A treatment method that consists of group and individual counseling sessions for people recovering from drug abuse, without medication" is the one among the following choices given in the question that is outpatient drug-free treatment. The correct option among all the options given in the question is the first option.
Lymph vessels are more like valves than veins. They prevent back flow, so things only need to go in one direction, unlike other areas of heavy traffic. Let me know if you need more. :)
