EN PN Flashcards

1
Q

Which visceral proteins / acute phase reactants have the shortest half-life?

A

The half life of negative acute phase reactants:

insulin-like growth factor 1 (IGF-1) ~2-6 hours
retinol binding protein (RBP) ~10 hours
prealbumin or transthyretin ~2-3 days
transferrin ~8-10 days
albumin ~20 days

The half life of positive acute phase reactants:
CRP ~19 hours
Ferritin ~19-20 hours

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2
Q

SGA scale and ratings

A

SGA is based on a 7-point rating scale. Lower ratings (1-2) indicate severe malnutrition, moderate ratings (3-5) indicate moderate-to-mild malnutrition, while high ratings (6-7) indicate good nutrition

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3
Q

When performing a nutrition focused physical exam, which 2 areas can show subcutaneous fat loss?

A

Subcutaneous fat loss can be seen in the orbital fat pads, triceps, and chest or rib area. Muscle wasting can be assessed in the clavicle, shoulder, calf, and scapula.

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4
Q

Calculate the energy provided from glucose containing dialysate in CRRT with 30% uptake with 2.5% dialysate at 999 mL/h

A

Energy (kcal) = dialysate flow rate (ml/h) * 24 h * dialysate glucose (g/mL) * 3.4 kcal/g dextrose * % uptake = 999 mL/h * 24 h * 0.025 g/mL * 3.4 kcal/g dextrose * 0.30 = 611 kcal/24h

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5
Q

What is the recommended amino acid amount for TPN in someone who has CKD and is not on dialysis

A

0.6-1g/kg
1.This estimate may be impacted by other conditions such as healing from injury or infection

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