The patient is ordered Glucerna 1.2 calories. You're supplied with a can of Glucerna that contains 237 mL. The doctor orders the tube feeding to be administered at a 1/2 strength with a rate of 65 mL/hr. How much water will you add to dilute the tube feeding formula as prescribed?
237 mL
68 mL
474 mL
118.5 ml
The Correct Answer is D
Given:
Volume of Glucerna 1.2: 237 mL
Desired concentration: 1/2 strength
Step 1: Determine the volume of Glucerna 1.2 needed for the half-strength solution:
Volume of Glucerna 1.2 for half-strength = Original volume / 2
Volume of Glucerna 1.2 for half-strength = 237 mL / 2
Volume of Glucerna 1.2 for half-strength = 118.5 mL
Step 2: Calculate the amount of water to be added:
Amount of water = Original volume - Volume of Glucerna 1.2 for half-strength
Amount of water = 237 mL - 118.5 mL
Amount of water = 118.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Given:
Ordered dose of Heparin: 100,000 units
Concentration of Heparin: 25,000 units/10 mL
Step 1: Set up the proportion:
Desired dose (units) / Volume to administer (mL) = Concentration (units/mL)
Step 2: Substitute the values:
100,000 units / Volume = 25,000 units/10 mL
Step 3: Solve for the unknown volume:
Volume = 100,000 units / (25,000 units/10 mL)
Volume = 100,000 units x (10 mL / 25,000 units)
Volume = 40 mL
Correct Answer is C
Explanation
Given:
Volume of fluid: 1,500 mL
Infusion time: 12 hours
Drop factor: 10 gtt/mL
Formula for mL/hr:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Calculate the flow rate in mL/hr:
Flow rate (mL/hr) = 1,500 mL / 12 hr
Flow rate (mL/hr) = 125 mL/hr
Formula for gtt/min:
Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = (1,500 mL / 12 hr) x 10 gtt/mL / 60 min/hr
Flow rate (gtt/min) = 125 mL/hr x 10 gtt/mL / 60 min/hr
Flow rate (gtt/min) = 1250 gtt/hr / 60 min/hr
Flow rate (gtt/min) = 20.83 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (mL/hr) = 125 mL/hr
Flow rate (gtt/min) ≈ 21 gtt/min
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.