Registered Dietitian Nutritionist Enteral & Parenteral Nutrition Support 2

Question 1

What is the primary indication for parenteral nutrition (PN)?

Accepted Answer

GI tract is non-functional, inaccessible, or cannot be safely used

Answer

Patient refuses oral feeding despite counseling

Answer

Patient has elevated metabolic demands in the ICU

Answer

Patient has a functioning GI tract with marginal oral intake

Question 2

Central parenteral nutrition (CPN) is delivered via a catheter whose tip is positioned in the:

Accepted Answer

Superior vena cava

Answer

Subclavian vein

Answer

Femoral vein

Answer

Basilic vein

Question 3

What is the maximum recommended osmolarity for peripheral parenteral nutrition (PPN) to minimize vein damage?

Accepted Answer

900 mOsm/L

Answer

600 mOsm/L

Answer

1200 mOsm/L

Answer

1800 mOsm/L

Question 4

Dextrose (D-glucose monohydrate) used in parenteral nutrition provides how many kilocalories per gram?

Accepted Answer

3.4 kcal/g

Answer

4.0 kcal/g

Answer

5.0 kcal/g

Answer

7.0 kcal/g

Question 5

What is the primary nitrogen source used in parenteral nutrition formulations?

Accepted Answer

Crystalline amino acids

Answer

Whole intact proteins

Answer

Dipeptides and tripeptides

Answer

Protein hydrolysates

Question 6

Which laboratory test should be monitored most frequently when initiating parenteral nutrition to assess metabolic tolerance?

Accepted Answer

Blood glucose

Answer

Serum albumin

Answer

Total bilirubin

Answer

Serum calcium

Question 7

In an ICU patient receiving both propofol and lipid-containing PN, which complication should the dietitian monitor for?

Accepted Answer

Hypertriglyceridemia

Answer

Essential fatty acid deficiency

Answer

Linoleic acid toxicity

Answer

Chylomicronemia syndrome from omega-3 overload