CDN CDN Enteral & Parenteral Nutrition 2

Question 1

Which complication is most associated with rapid advancement of enteral tube feeding in a critically ill patient?

Accepted Answer

Aspiration pneumonia

Answer

Aspiration pneumonia is a major risk of enteral feeding, particularly with gastric feeds in patients with impaired gastric motility or altered consciousness.

Question 2

A patient's TPN order includes 25% dextrose, 10% amino acids, and 20% lipid emulsion. Which component provides the most calories per gram?

Accepted Answer

Lipid emulsion

Answer

Lipid emulsions provide 9 kcal/gram, compared to dextrose at 3.4 kcal/gram (in IV form) and amino acids at 4 kcal/gram.

Question 3

Which lab value is most important to monitor for hepatic complications in a patient on long-term PN?

Accepted Answer

Serum bilirubin and liver enzymes (ALT/AST)

Answer

Elevated bilirubin and liver enzymes indicate PN-associated liver disease (PNALD), a common complication of long-term parenteral nutrition.

Question 4

For a patient with high gastric residual volumes on tube feeds, what feeding strategy is most appropriate?

Accepted Answer

Switch to post-pyloric (jejunal) feeding

Answer

Post-pyloric feeding bypasses the stomach, reducing aspiration risk in patients with delayed gastric emptying and high residual volumes.

Question 5

What is the typical protein requirement (g/kg/day) for a critically ill patient receiving nutrition support?

Accepted Answer

1.2–2.0 g/kg/day

Answer

Critical illness increases catabolism and protein needs; ASPEN and SCCM guidelines recommend 1.2–2.0 g/kg/day for most critically ill adults.

(CDN) Certified Dietician Nutritionist Practice Test

(CDN) Certified Dietician Nutritionist Practice Test

CDN CDN Enteral & Parenteral Nutrition 2