A nurse preparing to minister 0.9% sodium chloride via continuous IV infusion at 125 mL/hr. The primary tubing has a drop factor of 15gtt/mL. How many gtt/min should the nurse set the infusion pump to administer? (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 ["31"]
Determine the flow rate in mL/min:
The desired flow rate is 125 mL/hr.
There are 60 minutes in an hour.
Flow rate in mL/min: 125 mL/hr ÷ 60 min/hr = 2.0833 mL/min.
Calculate the drip rate in gtt/min:
The drip factor of the tubing is 15 gtt/mL.
This means that for every 1 mL, there are 15 drops.
To find the drip rate in gtt/min:
Drip rate (gtt/min) = Flow rate (mL/min) × Drip factor (gtt/mL)
Drip rate = 2.0833 mL/min × 15 gtt/mL
Calculating the drip rate:
Drip rate = 31.25 gtt/min
Round the answer to the nearest whole number:
Rounding 31.25 to the nearest whole number gives us 31 gtt/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Discard the suspension 14 days after opening the bottle:
The typical shelf life of phenytoin oral suspension after opening is much longer than 14 days, and discarding it within 14 days is unnecessary unless specified by the manufacturer. The nurse should refer to the medication label for the correct expiration time after opening, as it may vary based on the specific formulation. A typical time frame is around 30 days or as directed by the manufacturer, not 14 days.
B. Dilute the suspension with 38 mL water prior to initial use:
Phenytoin oral suspension does not need to be diluted with water prior to administration. The medication should be administered in its current form to ensure proper dosing. Diluting the suspension could affect the drug’s effectiveness and result in improper dosing, which could compromise treatment.
C. Store the suspension in the refrigerator:
Phenytoin oral suspension should not be stored in the refrigerator unless specifically instructed by the manufacturer. Storing it in the refrigerator could alter the consistency or effectiveness of the medication. It is typically recommended to store it at room temperature in a cool, dry place, away from direct light and heat. Always refer to the manufacturer’s storage guidelines.
D. Shake the suspension well before each administration:
Phenytoin oral suspension should be shaken well before each use to ensure that the medication is evenly distributed. The active ingredient can settle at the bottom of the bottle, and shaking helps to mix it back into the liquid to ensure an accurate dose. This is a critical step to achieve proper therapeutic levels and prevent dosing errors.
Correct Answer is ["3"]
Explanation
Convert the client's weight from pounds to kilograms:
There are 2.205 pounds in 1 kilogram.
165 lb = 165 lb / 2.205 lb/kg = 75 kg.
Determine the total dosage:
The client is prescribed 8 units/kg of calcitonin.
The client weighs 75 kg.
Dosage is 8 units/kg x 75 kg = 600 units.
Determine the volume per dose:
The calcitonin solution contains 200 units/mL.
The nurse needs to administer 600 units.
Divide 600 units / 200 units/mL = 3 mL.
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