A client is receiving heparin IV at a rate of 1,800 units/hour. The IV solution is labeled, "Heparin sodium 20,000 units in 5% dextrose Injection 500 mL." After receiving the partial thromboplastin time (PTT) result, the healthcare provider prescribes an increase of 5 ml/hour in the IV rate. The nurse should set the infusion pump to deliver how many ml/hour? (Enter numeric value only.)
The Correct Answer is ["50"]
First, we need to find out how many mL/hr the infusion pump is currently delivering.
Given:
The client is receiving 1,800 units/hour of heparin.
The available medication is 20,000 units/500 mL.
We can set up the proportion as follows:
1,800 units/ x mL = 20,000 units/500 mL
Solving for x gives us the volume in mL that the infusion pump is currently delivering per hour.
Cross-multiplying and solving for x:
X = 1,800 units×500 mL/20,000 units
After performing the calculation, we find that x equals 45 mL/hr.
Given that the healthcare provider prescribes an increase of 5 mL/hr in the IV rate, the nurse should set the infusion pump to deliver:
New rate (mL/hr) = Current rate (mL/hr) + Increase (mL/hr) = 45 mL/hr+5 mL/hr
After performing the calculation, we find that the new rate equals 50 mL/hr.
So, the nurse should set the infusion pump to deliver 50 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["111"]
Explanation
Here's how to calculate the rate for the infusion pump:
Total volume to infuse: 1 liter (given)
Infusion time: 9 hours (given)
We need to find the volume delivered per hour (mL/hour) considering the total volume and infusion time.
Volume conversion: Since the volume is given in liters, convert it to mL:
1 liter * 1000 mL/liter = 1000 mL
Infusion rate (mL/hour):
Infusion rate (mL/hour) = Total volume (mL) / Infusion time (hours)
Infusion rate (mL/hour) = 1000 mL / 9 hours
Infusion rate (mL/hour) = 111.11 mL/hour (round to nearest tenth)
Therefore, the nurse should program the infusion pump to deliver approximately 111 mL/hour.
Correct Answer is ["18"]
Explanation
Here's how to calculate the infusion rate (mL/hour) for the nurse to administer furosemide 60 mg IV every 12 hours:
1. Furosemide dose per administration:
Dose = 60 mg (given)
2. Dosage frequency (conversion from hours to minutes):
Frequency (minutes) = 12 hours/dose * 60 minutes/hour
Frequency (minutes) = 720 minutes/dose
3. Medication concentration:
Concentration = 10 mg/mL (given)
4. Infusion duration:
Duration = 20 minutes (given)
5. We need to find the total volume (mL) of the medication to be delivered and then convert that volume to a rate per hour (mL/hour).
Steps:
a. Calculate the volume to be infused (mL):
Volume (mL) = Dose (mg) / Concentration (mg/mL)
Volume (mL) = 60 mg / 10 mg/mL
Volume (mL) = 6 mL
b. Convert infusion duration from minutes to hours:
Infusion time (hours) = Infusion time (minutes) / 60 minutes/hour
Infusion time (hours) = 20 minutes / 60 minutes/hour
Infusion time (hours) = 1/3 hour
c. Calculate the infusion rate (mL/hour):
Infusion rate (mL/hour) = Volume (mL) / Infusion time (hours)
Infusion rate (mL/hour) = 6 mL / (1/3 hour)
Infusion rate (mL/hour) = 18 mL/hour
Therefore, the nurse should set the infusion pump to deliver approximately 18 mL/hour.
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