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 C

Explanation

A. Demonstrating how to palpate the popliteal pulse is not a suitable alternative for measuring blood pressure when the client cannot be measured in the arms or legs. Palpating peripheral pulses does not provide accurate blood pressure measurements.

B. Advising the UAP to document the last blood pressure obtained is insufficient because it does not address the need for current blood pressure monitoring. Documentation of past
measurements does not provide real-time information about the client's hemodynamic status.

C. Estimating the blood pressure by assessing the pulse volume of the client's radial pulses is a reasonable alternative when traditional blood pressure measurement sites are inaccessible. Although not as accurate as traditional methods, assessing the strength of peripheral pulses can provide valuable information about perfusion and blood pressure status.

D. Documenting why the blood pressure cannot be accurately measured is important for record- keeping but does not address the need for ongoing blood pressure monitoring or provide an alternative method for assessment.

A. Redress the abdominal incision. B. Leave the lights on in the room at night. C. Apply soft bilateral wrist restraints. D. Replace the IV site with a smaller gauge.

Correct Answer is A

Explanation

Rationale for A: Redressing the abdominal incision is crucial as the dressing is no longer occlusive, which could lead to infection. An intact dressing also prevents the client from picking at the site, which could cause further harm or delay healing.
Rationale for B: Leaving the lights on might help with visual perception for a client with dementia, but it does not directly address the immediate risk of infection or the client's interference with the dressing.
Rationale for C: Applying restraints could be considered for a client who is at risk of harming themselves, but this should be a last resort after other interventions have been tried due to the potential for physical and psychological harm.
Rationale for D: Replacing the IV site with a smaller gauge is not indicated by the pink insertion site alone and does not address the client's confusion or behavior towards the dressing.

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The unlicensed assistive personnel (UAP) reports that a client's blood pressure cannot be measured in the arms because the client has casts on both arms and is unable to be measured in the legs because the client is in the supine position. Which action should the nurse implement?

Correct Answer is C

Explanation

Correct Answer is A

Explanation

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