What does TPN stand for and how is it delivered?

What does TPN stand for and how is it delivered?

• A. Total parenteral nutrition delivered through a central line; needs to be titrated up and down
• B. Enteral feeding via NG tube
• C. Oral nutrition
• D. Hydration only

Answer: (A)

Total parenteral nutrition means delivering all the calories and nutrients the body needs directly into the bloodstream, bypassing the gut. Because the solution is highly concentrated, it’s given through a central venous catheter rather than a peripheral vein. The mix includes amino acids, glucose, lipids, electrolytes, vitamins, and trace elements, tailored to the patient’s energy needs and metabolic status. Initiation is gradual, titrating up to target calories and protein while monitoring blood glucose, electrolytes, liver function, and fluids; if the patient can tolerate or if enteral/oral feeding resumes, the TPN rate is titrated down or stopped. This approach is used when the GI tract can’t adequately absorb nutrients, which is why other options like NG tube feeding, oral nutrition, or hydration-only do not apply.

Total parenteral nutrition means delivering all the calories and nutrients the body needs directly into the bloodstream, bypassing the gut. Because the solution is highly concentrated, it’s given through a central venous catheter rather than a peripheral vein. The mix includes amino acids, glucose, lipids, electrolytes, vitamins, and trace elements, tailored to the patient’s energy needs and metabolic status. Initiation is gradual, titrating up to target calories and protein while monitoring blood glucose, electrolytes, liver function, and fluids; if the patient can tolerate or if enteral/oral feeding resumes, the TPN rate is titrated down or stopped. This approach is used when the GI tract can’t adequately absorb nutrients, which is why other options like NG tube feeding, oral nutrition, or hydration-only do not apply.