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A nurse is preparing to administer dopamine 5 mcg/kg/min by continuous IV infusion to a client who weighs 220 lb. Available is 400 mg of dopamine in 250 mL of 0.9% sodium chloride. The nurse should set the IV pump to deliver how many mi/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["18.8"]

To calculate the rate at which the IV pump should deliver dopamine, we can follow these steps:

Step 1: Convert the weight of the client from pounds to kilograms.

220 lb ÷ 2.2 = 100 kg (rounded to the nearest whole number)

Step 2: Calculate the total dose of dopamine per minute.

5 mcg/kg/min × 100 kg = 500 mcg/min

Step 3: Convert the dose from micrograms (mcg) to milligrams (mg).

500 mcg/min ÷ 1000 = 0.5 mg/min

Step 4: Determine the infusion rate in milliliters per hour (mL/hr).

The total volume of the solution is 250 mL.

The total dose of dopamine is 400 mg.

So, the infusion rate is (0.5 mg/min ÷ 400 mg) × 250 mL = 0.3125 mL/min.

Step 5: Convert the infusion rate from mL/min to mL/hr.

0.3125 mL/min × 60 min/hr = 18.75 mL/hr (rounded to the nearest tenth).

Therefore, the nurse should set the IV pump to deliver 18.8 mL/hr (rounded to the nearest tenth).

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Free Nursing Study Resources

Correct Answer is C

Explanation

Smoking is a known risk factor for the development of aspirin-induced ulcers. It can increase the risk of gastrointestinal bleeding and compromise the integrity of the gastric mucosa. Smoking can also impair the healing process and increase the risk of complications associated with ulcers.

While the other factors mentioned in the options may have their own health implications, smoking is specifically associated with an increased risk of aspirin-induced ulcers. Therefore, the nurse should identify the client's smoking habit as a risk factor for the development of an aspirin-induced ulcer.

Correct Answer is ["200"]

Explanation

To determine the infusion rate in mL/h, we need to divide the total volume (100 mL) by the total time (30 minutes) and then convert the result to hours.

100 mL / 30 min = 3.33 mL/min

To convert minutes to hours, we multiply by 60:

3.33 mL/min * 60 min/h = 199.8 mL/h

Rounding to the nearest whole number, the nurse should set the IV infusion pump to deliver 200 mL/h.

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is starting to take aspirin 81 mg daily. Which of the following findings should the nurse identify as a risk factor for the client's development of an aspirin-induced ulcer?

Correct Answer is C

Explanation

Correct Answer is ["200"]

Explanation

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