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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Free Nursing Study Resources

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

Explanation

A. Involve your mother in the decision-making process.

Involving the client in decision-making can help maintain her autonomy, reduce feelings of

helplessness, and potentially decrease the daughter's caregiver burden by sharing responsibility.

B. Moving your mother into a care facility will show her that you do not love her.

This statement is incorrect and could exacerbate feelings of guilt and stress in the caregiver. Decisions about care facilities should be based on the best interests of both the client and the caregiver, not on guilt or misconceptions about love.
C. It is okay not to love or like your mother when you are caring for her.

This statement might be misunderstood and could increase feelings of guilt and stress. It's more helpful to acknowledge that caregiving can be challenging and that it's normal to have mixed emotions.
D. You made a promise to your mother that you need to keep.

This statement could increase stress by suggesting that the caregiver has no options or flexibility, potentially exacerbating feelings of obligation and guilt.
E. Take time for yourself and the other relationships that you care about.

Taking time for self-care and maintaining other relationships is crucial for reducing caregiver stress and preventing burnout.
F. Saying "no" to things involving the care of your mother is a selfish action.

This statement is incorrect and could increase feelings of guilt and stress. It's important for caregivers to set boundaries and understand that it's okay to say "no" sometimes to maintain their well-being.
G. Helping your mother should be easier than raising a child.

This statement is misleading. Caregiving for an elderly parent can be as demanding, if not more so, than raising a child. It's important to recognize and validate the challenges of caregiving to provide appropriate support.
H. Avoid discussion of negative situations that may occur in the future.

This statement is not advisable. Open and honest communication about potential challenges is important for planning and reducing stress through preparedness.

A. Blood glucose of 90 mg/dl. (5 mmol/L). B. Potassium level of 4 mEq/L (4 mmol/L) C. Hemoglobin level of 13 g/dL (130 g/L). D. Serum creatinine of 5 mg/dL (442 pmol/L).

Correct Answer is D

Explanation

A. A blood glucose level of 90 mg/dL is within the normal reference range of 74 to 106 mg/dL, so it is not a concern.
B. A potassium level of 4 mEq/L is also within the normal reference range of 3.5 to 5.0 mEq/L, so it does not need to be reported.
C. Although the hemoglobin level of 13 g/dL is below the reference range provided, it is not critically low and may not be urgent unless the patient has symptoms of anemia or other related issues.
D. A serum creatinine level of 5 mg/dL is significantly higher than the normal reference range of 0.5 to 1.1 mg/dL. This indicates renal impairment, which could affect the patient's ability to clear medications used during surgery and could lead to postoperative complications. Therefore, it is crucial to report this finding to the surgeon immediately.

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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

Explanation

Correct Answer is D

Explanation

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