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.)

Answer and Explanation

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).

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Correct Answer is C

Explanation

Choice A rationale
Monitoring the patient’s blood pressure every 1 hour for 2 hours after paracentesis may not be sufficient. Paracentesis is a procedure to remove fluid that has accumulated in the abdominal cavity (a condition called ascites). This is a common problem in people with certain diseases, including liver and kidney disease. Changes in blood pressure can occur rapidly after this procedure, so more frequent monitoring is needed immediately after the procedure.
Choice B rationale
Monitoring the patient’s blood pressure every 5 minutes for one hour after paracentesis may be too frequent and could cause unnecessary stress for the patient. It is important to balance the need for monitoring with the patient’s comfort and well-being.
Choice C rationale
Monitoring the patient’s blood pressure every 15 minutes for one hour, then every 1 hour for 2 hours after paracentesis is a good schedule. This allows for close monitoring immediately after the procedure, when complications are most likely to occur. It then allows for continued monitoring as the patient stabilizes.
Choice D rationale
Monitoring the patient’s blood pressure every 5 minutes for 30 minutes, then every 4 hours thereafter may not provide enough monitoring in the immediate post-procedure period. While it is important to continue monitoring, the first few hours after the procedure are a critical time when complications are most likely to occur.

A. Encourage the client to participate in a team sport for one hour. B. Assist the client in developing a list of daily affirmations. C. Schedule the client for a group session that focuses on self-esteem. D. Help the client in identifying goals for the day.

Correct Answer is D

Explanation

Choice A rationale

Encouraging the client to participate in a team sport for one hour might be beneficial for the client’s physical health, but it might not be the most important intervention for a client with severe depression who spends most of the day sitting and watching television.
Choice B rationale
Assisting the client in developing a list of daily affirmations can be a helpful strategy for improving self-esteem and promoting positive thinking, but it might not be the most important intervention for a client with severe depression who spends most of the day sitting and watching television.
Choice C rationale
Scheduling the client for a group session that focuses on self-esteem can be beneficial for the client’s mental health, but it might not be the most important intervention for a client with severe depression who spends most of the day sitting and watching television.
Choice D rationale
Helping the client in identifying goals for the day can be a very effective intervention for a client with severe depression. Setting daily goals can provide the client with a sense of purpose and can help to motivate the client to engage in activities other than sitting and watching television.

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Naxlex Comprehensive Predictor Exams

A patient with pancreatic cancer develops ascites, and 2 liters of fluid are removed via paracentesis. What schedule should the nurse follow to monitor the patient’s blood pressure after this procedure?

Correct Answer is C

Explanation

Correct Answer is D

Explanation

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