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3. Determine the volume of water for dilution:

total volume of liquid −volume of drug =volume of water for dilution

Example: acetaminophen 650 mg, q6h, PRN for pain

Have (on hand): Acetaminophen elixir 65 mg/mL.

Average mOsm/kg = 5400

1. D ×V = 650 mg ×1 mL = 10 mL
   H 65 mg

H: V D:x

65 mg : 1mL :: 650 mg: :xmL

65x= 650

x=10 mL of acetaminophen

2. known mOsm (5400) ×volume of drug (10) = 5400 × 10 =108 mL of
   liquid desired mOsm (500) 500


3. total volume of liquid (108 mL) ×volume of drug (10 mL0 =98 mL of
   water for dilution

Nursing Process

Assessment

• Assess the tape around the nasogastric tube


• Assess sign and symptoms of intolerance to feedings


• Intake and output


• Bowel sounds


• Baseline laboratory values

Nursing Diagnoses

• Risk for fluid volume deficit


• Risk for diarrhea related to tube feedings

CHAPTER 11 Nutritional Support Therapies^189