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
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.
Correct Answer is C
Explanation
Choice A rationale
Paying close attention to the client’s account of the event is important, but it is not the most crucial intervention. The nurse should listen empathetically and nonjudgmentally to the client’s account, but this should not take precedence over ensuring the client’s physical well- being and preserving evidence.
Choice B rationale
Reporting the incident to the university’s security department is not the most crucial intervention. While it is important to report the incident to the appropriate authorities, the nurse’s primary responsibility is to the client. Ensuring the client’s physical well-being and preserving evidence should take precedence.
Choice C rationale
Preventing the client from showering until all evidence is collected is the most crucial intervention. Showering can destroy valuable physical evidence that can be used in the investigation and prosecution of the crime.
Choice D rationale
Ascertaining the client’s personal reaction to the reported rape is important, but it is not the most crucial intervention. The nurse should provide emotional support and refer the client to counseling services, but this should not take precedence over ensuring the client’s physical well-being and preserving evidence.
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