when is the above therapy used for feeding?
Parenteral nutrition is the act of providing required nutrients to a person through an intravenous line.
Intravenous therapy
Parenteral nutrition is the act of providing required nutrients to a person through an intravenous line. 
explain why iv infusion of medication is the most dangerous method to administer medication One of the reason is that the placement of an intravenous line requires breaking the skin and there is a risk of infection. what is the meaning of this therapy? It is a medical technique that delivers a liquid directly into a person's vein. when was this used first in the past? 1492 what was the reason to use it? When Pope Innocent VIII fell ill and was administered blood from healthy individuals. who is this person mentioned above? He was head of the Catholic Church and ruler of the Papal States. which places fall under the latter mentioned body? It covered most of the modern Italian regions of Lazio (which includes Rome), Marche, Umbria and Romagna, and portions of Emilia.
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Intravenous therapy [SEP] Nutrition
Parenteral nutrition is the act of providing required nutrients to a person through an intravenous line. This is used in people who are unable to get nutrients normally, by eating and digesting food. A person receiving parenteral nutrition will be given an intravenous solution which may contain salts, dextrose, amino acids, lipids and vitamins. The exact formulation of a parenteral nutrition used will depend on the specific nutritional needs of the person it is being given to. If a person is only receiving nutrition intravenously, it is called total parenteral nutrition, whereas if a person is only receiving some of their nutrition intravenously it is called partial parenteral nutrition (or supplemental parenteral nutrition).