A nurse is preparing to administer lactated Ringer's 150 mUhr by continuous IV infusion. The drop factor of the manual tv tubing is 15 gtt/mL. The nurse should set the IV flow rate to deliver how many gtt/min? (Round the answer to the nearest whole number, use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["38"]
Identify the Given Information:
Infusion Rate: 150 mL/hr
Drop Factor: 15 gtt/mL
Convert the Infusion Rate to mL/min:
There are 60 minutes in 1 hour.
Infusion Rate (mL/min) = 150 mL/hr / 60 min/hr
Infusion Rate (mL/min) = 2.5 mL/min
Calculate the Drip Rate (gtt/min):
Drip Rate (gtt/min) = Infusion Rate (mL/min) x Drop Factor (gtt/mL)
Drip Rate (gtt/min) = 2.5 mL/min x 15 gtt/mL
Drip Rate (gtt/min) = 37.5 gtt/min
Round to the Nearest Whole Number:
38 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["30"]
Explanation
Understanding the Problem
Order: Potassium gluconate 40 mEq PO
Available Solution: Potassium gluconate liquid 20 mEq/15 mL
Desired Dose: mL to administer
Step 1: Set Up the Calculation
We need to find the volume (in mL) that contains the ordered dose (40 mEq). We can do this by setting up a proportion or using the formula:
Volume (mL) = (Ordered Dose (mEq) / Concentration (mEq/mL))
Step 2: Determine the Concentration
Available Concentration: 20 mEq / 15 mL
Step 3: Perform the Calculation
Ordered Dose: 40 mEq
Concentration: 20 mEq / 15 mL
Volume: (40 mEq) / (20 mEq / 15 mL) = (40 mEq X 15 mL) / 20 mEq
We can simplify this by dividing 40 by 20:
Volume: (2 X 15 mL) = 30 mL
Step 4: Round to the Nearest Whole Number
The result is 30 mL, which is already a whole number.
Answer: 30 mL
Correct Answer is ["667"]
Explanation
Understanding the Problem
Volume: 500 mL of 0.9% sodium chloride
Infusion Time: 45 minutes
Desired Rate: mL/hr
Step 1: Convert Infusion Time to Hours
Minutes in an Hour: 60 minutes
Infusion Time in Hours: 45 minutes / 60 minutes/hour = 0.75 hours
Step 2: Calculate the Infusion Rate in mL/hr
Volume: 500 mL
Infusion Time: 0.75 hours
Infusion Rate: 500 mL / 0.75 hours = 666.666... mL/hr
Step 3: Round to the Nearest Whole Number
The calculated rate is 666.666. mL/hr.
Rounded to the nearest whole number: 667 mL/hr
Answer: 667 mL/hr
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