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

Explanation

- A) Knowing the medications the patient takes is crucial for understanding her medical history and any potential interactions with treatments that may be administered.

- B) Understanding the events leading up to the fall can help in assessing the cause and potential injuries sustained, which is important for her current and future treatment plans.

- C) Information about the last meal is important for anesthesia considerations, in case surgery is required, and for understanding the patient's nutritional status.
- D) Knowing if the patient is pregnant is vital as it influences the management of her care and the urgency of certain tests, as well as the avoidance of potential harm to the fetus.
- E) Information about cohabitants can be useful for social support and may also provide additional information about the circumstances leading to the injury.
- F) While insurance status is a practical consideration, it is not clinically relevant to the secondary survey and immediate care of the patient. Therefore, it is not an appropriate question at this stage.

A. Every 5 minutes for 30 minutes, then every 4 hours thereafter. B. Every 5 minutes for one hour. C. Every 15 minutes for one hour, then every 1 hour for 2 hours. D. Every 1 hour for 2 hours.

Correct Answer is A

Explanation

A. Every 5 minutes for 30 minutes is crucial after paracentesis to closely monitor for signs of hypovolemia, such as a sudden drop in blood pressure. After this initial intensive monitoring period, the frequency can be reduced to every 4 hours to assess for any delayed effects or complications.

B. Every 5 minutes for one hour is a shorter duration of monitoring compared to option A and

may not provide adequate time to detect and respond to any significant changes in blood pressure that could occur after paracentesis, especially considering the volume of fluid removed.

C. Every 15 minutes for one hour, then every 1 hour for 2 hours provides frequent monitoring

initially, but the interval between assessments is too long after the first hour, potentially missing early signs of complications such as hypovolemia.

D. Every 1 hour for 2 hours does not provide sufficient frequency of monitoring, especially during the critical immediate post-paracentesis period when rapid changes in blood pressure can occur. This schedule may delay the detection and management of complications.

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Naxlex Comprehensive Predictor Exams

Exhibits Following the fluid bolus, the client is more awake and able to answer questions. What questions are appropriate for the secondary survey? Select all that apply.

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

Explanation

A client with pancreatic cancer develops ascites, and 2 liters of fluid are removed via paracentesis. Which schedule should the nurse implement to assess the client's blood pressure after this procedure?

Correct Answer is A

Explanation

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