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Dopamine hydrochloride IV at 2 mcg/kg/minute is prescribed to promote renal perfusion for a client weighing 198 lbs. The pharmacy sends a pre-mixed bag of dopamine containing 400 mg in 250 mL dextrose 5% in water (DSW). An IV pump is available that provides a precision infusion rate to a tenth of a mL. The nurse should set the IV pump to deliver how many mL/hour? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Answer and Explanation

The Correct Answer is ["6.8"]

Converting the weight to kg:
Client weight = 198 lbs 1 lb = 0.453592 kg
 
Client weight in kg = 198 lbs 0.453592 kg/lb = 90.7 kg
Calculating the desired dopamine infusion rate:
Dose = 2 mcg/kg/minute Client weight = 90.7 kg
Desired infusion rate = Dose Client weight = 2 mcg/kg/minute 90.7 kg = 181.4 mcg/minute

Determining the dopamine concentration in the bag:

Dopamine amount = 400 mg Bag volume = 250 mL
Dopamine concentration = Dopamine amount / Bag volume = 400 mg / 250 mL = 1.6 mg/mL
Convert mg/mL to mcg/mL: 1.6 mg/mL 1000 mcg/mg = 1600 mcg/mL

Calculating the rate in mL/minute:

Desired infusion rate = 181.4 mcg/minute Dopamine concentration = 1600 mcg/mL
Rate (mL/minute) = Desired infusion rate (mcg/minute) / Dopamine concentration (mcg/mL)
Rate = 181.4 mcg/minute / 1600 mcg/mL = 0.1134 mL/minute

Converting the rate to mL/hour:
Rate (mL/minute) = 0.1134 mL/minute Conversion factor: 60 minutes/hour
Rate (mL/hour) = 0.1134 mL/minute 60 minutes/hour = 6.8 mL/hour (round to nearest tenth)

Therefore, the nurse should set the IV pump to deliver approximately 6.8 mL/hour.


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Related Questions

Correct Answer is ["A","C","E"]

Explanation

A. Involve your mother in the decision-making process promotes autonomy and shared responsibility, helping the caregiver feel less burdened and improving the client’s satisfaction and participation in care.

B. Moving your mother into a care facility will show her that you do not love her increases caregiver guilt and stress rather than helping them cope.

C.Normalizing mixed emotions acknowledges that caregivers may feel frustration or emotional fatigue without judgment, helping reduce guilt and emotional distress.

D. You made a promise to your mother that you need to keep reinforces obligation and may increase feelings of guilt and pressure.

E. Take time for yourself and the other relationships that you care about is essential for preventing burnout, maintaining personal time and social connections, and supporting the caregiver’s ability to provide care effectively.

F.Labeling refusal as selfish increases guilt and pressure, which worsens caregiver strain and is not supportive communication.

G. Helping your mother should be easier than raising a child can increase stress and feelings of inadequacy by creating unrealistic expectations about caregiving.

Correct Answer is A

Explanation

A. Keep diabetic medication on schedule as prescribed.

This is the correct answer because maintaining a regular schedule for diabetic medication is crucial for managing blood glucose levels and preventing complications.

B. Limit maximum daily fat intake to 15% of total calories.

While reducing fat intake can be beneficial for overall health, it is not directly related to managing acute blood glucose levels or preventing immediate complications of diabetes.

C. Check blood sugar levels every four to six hours every day.

Frequent monitoring of blood sugar levels is important, but checking every four to six hours may not be necessary for all clients, especially if they are not on insulin or if their diabetes is well-controlled. It depends on individual needs and physician recommendations.

D. Restrict alcoholic beverages to no more than 1-2 per week.

Limiting alcohol intake is good advice for overall health and diabetes management, but it is not the most critical action compared to keeping medications on schedule to prevent complications.

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