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
A) "My child has some swelling around her eyelids and mouth."
In this scenario, the parent reporting swelling around the toddler's eyelids and mouth after receiving immunizations is the nurse's priority concern. Swelling around the eyes and mouth can be indicative of a possible allergic reaction, such as angioedema or anaphylaxis, which can be a serious and life-threatening condition. Immediate assessment and intervention are needed to address this potential allergic reaction.
The other findings, while important, are not as immediately concerning:
B) A temperature of 100.7 degrees Fahrenheit is a mild fever, which can be expected as a side effect of some vaccines. It may not be the nurse's immediate priority, but it should still be monitored.
C) A toddler's decreased feeding of 2 ounces during her last feeding may be related to her discomfort or fever after immunizations. It's essential to monitor this but not an immediate priority.
D) Crying when touched at the injection site is a common response to immunizations and, while uncomfortable for the child, is not typically a cause for immediate concern. However, it should still be addressed with comfort measures.
Correct Answer is ["A","D"]
No explanation
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