Protein Base Rate and TPN Indications Quiz

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13 Questions

What is the base rate for protein used in TPN calculations?

1 g/Kg/d

What are the absolute indications for TPN?

Any GI issues

Which two electrolytes can precipitate in TPN and cause problems, including pulmonary calcifications?

Calcium & phosphorus

What size filter is used with a 3:1 TPN to prevent blockage?

1.2 micron

What are three types of access points for Parenteral Nutrition?

Central, peripheral, PICC

How is metabolic adjusted weight (MAW) calculated?

Ideal body weight + ((Actual body weight - Ideal body weight) x 0.25)

What is considered isotonic when it comes to Enteral feedings?

300 mOsm

What action should be taken in case of diarrhea from an enteral feeding?

Switch to a lower osmolality formula

What is the total daily fluid calculation for a patient weighing 70kg?

1500mL + ((Kg - 20) x 20)

What is the correct method for calculating metabolic adjusted weight (MAW)?

Ideal body weight = IBW + ((ABW-IBW) x 0.25)

What is the size of the filter required to prevent blockage in a 3:1 TPN?

1.2 micron

What is the recommended action to be taken in case of diarrhea from an enteral feeding?

Adjust the feeding rate or formula

What is considered Isotonic when it comes to Enteral feedings?

300 mOsm

Study Notes

TPN Calculations

  • The base rate for protein used in TPN calculations is 1.5-2.5 grams/kg/day.

Indications for TPN

  • Absolute indications for TPN include:
    • GI obstruction
    • GI fistula
    • Radiation enteritis
    • Severe malabsorption
    • Intractable vomiting
    • Paralytic ileus

Electrolytes in TPN

  • Calcium and phosphate are two electrolytes that can precipitate in TPN, causing problems such as pulmonary calcifications.

TPN Filter Size

  • A 1.2 micron filter is used with a 3:1 TPN to prevent blockage.

Access Points for Parenteral Nutrition

  • Three types of access points for Parenteral Nutrition are:
    • Central Venous Catheter (CVC)
    • Peripherally Inserted Central Catheter (PICC)
    • Midline Catheter

Metabolic Adjusted Weight (MAW) Calculation

  • MAW is calculated using the following formula: MAW = IBW + (0.4 × (ABW - IBW))

Isotonic Enteral Feedings

  • An enteral feeding solution is considered isotonic when it has an osmolarity of 300-800 mOsm/L.

Diarrhea from Enteral Feedings

  • In case of diarrhea from an enteral feeding, the action to be taken is to:
    • Hold the feeding for 1-2 hours
    • Monitor for signs of dehydration
    • Consider adding an anti-diarrheal medication

Total Daily Fluid Calculation

  • The total daily fluid calculation for a patient weighing 70kg is 2,450 mL (35 mL/kg/day).

Metabolic Adjusted Weight (MAW) and Filter Size

  • The correct method for calculating MAW is: MAW = IBW + (0.4 × (ABW - IBW))
  • A 1.2 micron filter is required to prevent blockage in a 3:1 TPN.

Base Rate for Protein and TPN Indications Quiz: Test your knowledge on the base rate for protein calculation in grams per kilogram and identify absolute indications for Total Parenteral Nutrition (TPN) use. Challenge yourself with this quiz to reinforce your understanding of protein calculations and TPN indications in clinical settings.

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