A nurse is preparing to administer dopamine hydrochloride 4 mcg/kg/min via continuous infusion.
Available is dopamine hydrochloride in a solution of 800 mg in a 250 mL bag.
The client weighs 80 kg. The nurse should set the IV infusion to deliver how many mL/hr? (Round the answer to the nearest whole number.
Use a leading zero if it applies.)
4 mL/hr.
5 mL/hr.
6 mL/hr.
7 mL/hr.
The Correct Answer is C
Step 1: Convert the dopamine hydrochloride dose from mcg to mg. We know that 1 mg = 1000 mcg. So, 4 mcg = 0.004 mg.
Step 2: Calculate the total amount of dopamine hydrochloride the client needs per minute. We know that the client weighs 80 kg and the dose is 0.004 mg/kg/min. So, 0.004 mg/kg/min × 80 kg = 0.32 mg/min.
Step 3: Convert the total amount of dopamine hydrochloride the client needs per minute to an hourly rate. We know that 1 hour = 60 minutes. So, 0.32 mg/min × 60 min/hr = 19.2 mg/hr.
Step 4: Calculate the volume of the solution that contains 19.2 mg of dopamine hydrochloride. We know that the solution contains 800 mg in 250 mL. So, (19.2 mg ÷ 800 mg) × 250 mL = 6 mL.
Therefore, the nurse should set the IV infusion to deliver 6 mL/hr (rounded to the nearest whole number).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The nurse should instruct the assistive personnel (AP) to report the client who has a prescription for compression stockings but did not receive them. This situation involves a missed intervention that is crucial for the client's health and safety. Reporting this to the nurse allows timely intervention and ensures that the client receives the necessary care.
Choice B rationale:
Consuming all the food from the meal tray is not a cause for concern and does not require immediate reporting to the nurse. It is a normal behavior and does not indicate any potential issues with the client's health or safety.
Choice C rationale:
The client's request to sit in the bedside chair while watching TV is a common and appropriate request. It does not pose any risk to the client's health or safety and does not require immediate reporting to the nurse.
Choice D rationale:
A client requesting assistance to use the bedside commode indicates a need for assistance with a basic activity of daily living. The AP should assist the client with this request as appropriate and does not need to report it to the nurse unless complications or concerns arise during the process.
Correct Answer is A
Explanation
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