A client with a gastrostomy tube (GT) receives a prescription for Osmolite® 1/2 strength enteral formula at 80 ml/hour. To prepare a 4 hour solution, the nurse should dilute the full-strength formula with how many ml of water? (Enter numeric value only.)
The Correct Answer is ["160"]
To prepare a 4-hour solution of Osmolite® 1/2 strength enteral formula at 80 ml/hour, the nurse will need to dilute the full-strength formula with a certain amount of water.
Step 1: Calculate the total volume of the 1/2 strength formula needed for 4 hours:
Total Volume = Infusion Rate (mL/hour) x Infusion Time (hours)
Total Volume = 80 mL/hour x 4 hours
Total Volume = 320 mL
Step 2: Determine the volume of full-strength Osmolite® needed:
Since the desired solution is 1/2 strength, we need to dilute the full-strength formula by half.
Volume of Full-Strength Osmolite® = Total Volume / 2
Volume of Full-Strength Osmolite® = 320 mL / 2
Volume of Full-Strength Osmolite® = 160 mL
Step 3: Calculate the volume of water needed to dilute the full-strength Osmolite®:
Volume of Water = Total Volume - Volume of Full-Strength Osmolite®
Volume of Water = 320 mL - 160 mL
Volume of Water = 160 mL
Therefore, the nurse should dilute the full-strength Osmolite® with 160 mL of water to prepare a 4-hour solution.
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Related Questions
Correct Answer is ["40"]
Explanation
Calculating the Inamrinone Infusion Rate
Step 1: Convert weight to kilograms:
183 lbs x (1 kg / 2.20462 lbs) ≈ 83.0 kg
Step 2: Calculate the desired dose rate in mcg/minute:
8 mcg/kg/minute x 83.0 kg ≈ 664 mcg/minute
Step 3: Calculate the concentration of inamrinone in the IV solution:
0.1 grams/100 mL = 100 mg/100 mL = 1 mg/mL
Step 4: Calculate the infusion rate in mL/hour:
First, convert mcg to mg:
664 mcg x (1 mg / 1000 mcg) = 0.664 mg/minute
Then, set up a proportion:
x mL/hour / 0.664 mg/minute = 60 minutes/hour / 1 mg/mL
Cross-multiply and solve for x:
x mL/hour = 0.664 mg/minute x 60 minutes/hour / 1 mg/mL
x mL/hour ≈ 40 mL/hour
Therefore, the nurse should program the infusion pump to deliver approximately 40 mL/hour.
Correct Answer is ["3"]
Explanation
First, let's convert grams to milligrams:
0.3 grams x 1000 mg/gram = 300 mg
Then, set up a proportion:
x capsules / 300 mg = 1 capsule / 100 mg
Cross-multiply:
100x = 300
Solve for x:
x = 300 / 100
x = 3
Therefore, the nurse should administer 3 capsules of docusate sodium (Colace).
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