A client weighing 198 lbs is prescribed Dopamine hydrochloride IV at 2 mcg/kg/minute to promote renal perfusion.
The pharmacy provides a pre-mixed bag of dopamine containing 400 mg in 250 mL dextrose 5% in water (D5W). An IV pump that provides a precision infusion rate to a tenth of a mL is available.
How many mL/hour should the IV pump be set to deliver? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["6.8"]
Step 1: Convert the client’s weight from lbs to kg. 1 kg is approximately 2.2 lbs. So, 198 lbs ÷
2.2 = 90 kg (rounded to the nearest whole number).
Step 2: Calculate the total mcg of Dopamine needed per minute. The prescription is for 2 mcg/kg/minute. So, 90 kg × 2 mcg/kg/minute = 180 mcg/minute.
Step 3: Convert the total mcg of Dopamine in the bag to mcg/mL. The bag contains 400 mg of Dopamine in 250 mL. 1 mg is equal to 1000 mcg. So, 400 mg × 1000 = 400,000 mcg. Therefore, the concentration is 400,000 mcg ÷ 250 mL = 1600 mcg/mL.
Step 4: Calculate the mL of Dopamine needed per minute. So, 180 mcg/minute ÷ 1600 mcg/mL
= 0.1125 mL/minute.
Step 5: Convert mL/minute to mL/hour. There are 60 minutes in an hour. So, 0.1125 mL/minute × 60 = 6.75 mL/hour. The IV pump should be set to deliver 6.8 mL/hour (rounded to the nearest tenth).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Suggesting that the child participate in a team sport to encourage socialization is not the best response. Duchenne muscular dystrophy (DMD) is a progressive disease that causes muscle weakness and loss of muscle mass. Participating in a team sport could be physically challenging for the child and could potentially lead to injury.
Choice B rationale
Encouraging the parents to allow the child to continue attending swimming lessons with supervision is the best response. Swimming is a low-impact exercise that can help maintain muscle strength and flexibility in children with DMD. It also provides an opportunity for socialization.
Choice C rationale
Explaining that the child is too young to understand the risks associated with swimming is not the best response. Children with DMD can participate in swimming with appropriate supervision and safety measures in place.
Choice D rationale
Providing a list of alternative activities that are less likely to cause the child to experience fatigue is not the best response. While it’s important to consider activities that are appropriate for the child’s physical abilities, it’s also important to consider the child’s interests. The child has expressed a desire to continue swimming, and with appropriate supervision, this activity can be beneficial.
Correct Answer is B
Explanation
The correct answer is choiceB. Confirm that the gown is tied securely at the neck and waist.
Choice A rationale:
Reminding the UAP to wash hands frequently while in the room is important for infection control, but it is not the immediate priority in this scenario. The UAP has already donned gloves, which are part of the personal protective equipment (PPE) required for contact precautions. Hand hygiene is crucial before and after patient contact and after removing gloves, but ensuring the gown is properly secured takes precedence to prevent contamination.
Choice B rationale:
Confirming that the gown is tied securely at the neck and waist is essential to ensure that the UAP is fully protected from potential contamination.A properly secured gown prevents the UAP’s clothing from coming into contact with the patient or contaminated surfaces, which is critical in maintaining effective contact precautions.
Choice C rationale:
Assisting the UAP with the application of a face mask or face shield is necessary for droplet or airborne precautions, not specifically for contact precautions.Since the scenario involves contact precautions, the focus should be on the gown and gloves.
Choice D rationale:
Helping the UAP reposition the gown sleeve over the glove edges is not necessary because the UAP has already secured the tops of the gloves over the gown sleeves.This method is appropriate as it prevents the sleeves from becoming contaminated.
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