What is prenatal nutrition ?
Parenteral nutrition means feeding intravenously
(through a vein). "Parenteral" means "outside of the
digestive tract." Whereas enteral nutrition is
delivered through a tube to your stomach or the
small intestine, parenteral nutrition bypasses your
entire digestive system, from mouth to anus.
Certain medical conditions may require parenteral
nutrition for a short or longer time. Some people
need it to supplement their diet, and some people
need to get all of their calories intravenously.
,What are the two types of parenteral
nutrition ?
Parenteral nutrition can be partial or total.
• Partial parenteral nutrition (PPN) is parenteral
nutrition given to supplement other kinds of
feeding. If you’re eating but still have
malnutrition, healthcare providers may offer
you partial parenteral nutrition to replace
missing elements in your diet or give you
additional calories.
• Total parenteral nutrition (TPN) is complete
nutrition delivered intravenously to people who
can’t use their digestive systems at all. TPN
might be required when certain conditions
impair your ability to process food and absorb
nutrients through your digestive tract, or when
you need to avoid using your digestive system
for a while so it can heal.
, Sometimes parenteral nutrition is classified by the
type of vein that is used to deliver the nutrition.
• Central parenteral nutrition (CPN) is delivered
through a central vein — usually, the superior
vena cava located under your collarbone, which
goes directly to your heart. The larger central
vein allows a larger catheter to deliver higher
concentrations of nutrition with higher calories.
For this reason, CPN is used to deliver total
parenteral nutrition.
• Peripheral parenteral nutrition (PPN) is
delivered through a smaller, peripheral vein,
perhaps in your neck or in one of your limbs.
PPN is used to provide partial parenteral
nutrition temporarily, using the quicker and
easier access of the peripheral vein.
What does parenteral nutrition contain?