A patient has peripheral parenteral nutrition (PPN) ordered. The IV team nurse is placing a peripheral intravenous line for its administration. The nurse reviews the orders and prepares to administer the PPN
Upon checking the solution against the orders, the nurse is aware that it is safest to administer a dextrose concentration no greater than 10% because what?
A) Dextrose concentrations greater than 10% will cause a chemical phlebitis.
B) Dextrose concentrations greater than 10% are poorly absorbed by the body.
C) Dextrose concentrations greater than 10% are incompatible with lipid solutions.
D) Ddextrose concentrations greater than 10% limit the length of therapy to 2 weeks.
Ans: A
Feedback: When administering PPN, dextrose concentrations of more than 10% should not be administered through peripheral veins because they irritate the intima of small veins, causing chemical phlebitis. Lipids are administered simultaneously to buffer the PPN and to protect the peripheral vein from irritation. The usual length of therapy using PPN is 5 to 7 days.
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