How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Nitroglycerin 125 mg diluted in 500 mL DSW (dextrose 5% in water) is infusing at a rate of 42 mcg/minute for a patient with chest pain. What rate (in mL/hr) should the nurse program into the IV pump to deliver this dose? Round your answer to the nearest tenth

A.

6.5 mL/hr

B.

9.6 mL/hr

C.

10.1 mL/hr

D.

14.8 mL/hr

Answer and Explanation

The Correct Answer is C

To calculate the rate in mL/hr for the nitroglycerin infusion, you can use the following formula:

Rate (mL/hr) = (Dose (mcg/min) / Concentration (mcg/mL)) × 60 (min/hr)

Let's plug in the values:

  • Dose (mcg/min) = 42 mcg/min
  • Concentration (mcg/mL) = 125 mg in 500 mL = (125,000 mcg in 500 mL) = 250 mcg/mL

Now, calculate the rate:

Rate (mL/hr) = (42 mcg/min / 250 mcg/mL) × 60 min/hr

Rate (mL/hr) = (0.168 mL/min) × 60 min/hr

Rate (mL/hr) = 10.08 mL/hr

Rounded to the nearest tenth, the nurse should program the IV pump to deliver the nitroglycerin at a rate of 10.1 mL/hr.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is B

Explanation

A. If the child has an elevated temperature that has not responded to treatment:
This scenario does not relate to the calculation of a pediatric medication dose based on an adult. Elevated temperature and lack of response to treatment indicate a need for reassessment of the treatment plan, but it does not dictate using an adult dose for a pediatric patient.

B. If the drug insert does not specify a pediatric dose:
In many cases, drug manufacturers provide specific dosing guidelines for pediatric patients. However, if the drug insert does not contain pediatric dosing information, healthcare providers might need to calculate the appropriate dose based on the adult dose and adjust it according to the child's weight, age, and other factors.

C. If the child has gained or lost weight in the past month:
Changes in weight can significantly affect the appropriate dosage for pediatric patients. If a child has gained or lost weight, healthcare providers need to recalculate the dosage based on the current weight to ensure the medication is administered safely and effectively.

D. If the drug insert states that the medication is not for pediatric use:
If the drug insert explicitly states that the medication is not intended for pediatric use, it means the medication has not been tested or approved for children. In such cases, healthcare providers should not use the medication for pediatric patients, and alternative treatments or medications suitable for pediatric use should be considered.

Correct Answer is B

Explanation

To calculate the mL/hr flow rate for a continuous infusion, you can use the following formula:

Flow Rate (mL/hr) = Total Volume (mL) / Total Time (hr)

In this case, the total volume is 2.5 liters, which is equivalent to 2500 mL. The total time is 15 hours.

Flow Rate (mL/hr) = 2500 mL / 15 hr
Flow Rate (mL/hr) = 166.67 mL/hr

So, the mL/hr flow rate for the continuous infusion of 2.5 liters of 0.9% sodium chloride solution over 15 hours is approximately 166.67 mL/hr.

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

Register