A physician orders Dobutamine 10 mcg/kg/min for a patient. The patient is 110 lb.

How many milligrams per hour should the patient receive?

0.5 mg/hr

30 mg/hr

60 mg/hr

145 mg/hr

Answer and Explanation

The Correct Answer is B

To calculate the dose of dobutamine in mg/hr, we need to convert the patient's weight from pounds (lb) to kilograms (kg) and then use the ordered dose of 10 mcg/kg/min.

1 lb = 0.453592 kg (rounded to 6 decimal places) Patient's weight in kg = 110 lb x 0.453592 kg/lb

Patient's weight in kg = 49.89512 kg (rounded to 5 decimal places)

Now we can calculate the dose of dobutamine in mg/hr using the following formula:

Dose (in mg/hr) = Weight (in kg) x Dose (in mcg/kg/min) x 60 (to convert minutes to hours) / 1000 (to convert mcg to mg)

Dose (in mg/hr) = 49.89512 kg x 10 mcg/kg/min x 60 / 1000

Dose (in mg/hr) = 29.937072 mg/hr (rounded to 3 decimal places)

Therefore, the patient should receive a dose of approximately 29.9 mg/hr of dobutamine.

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Correct Answer is D

Explanation

To calculate the time it will take to finish the infusion, we can use the formula:

Time = Volume / Rate

Plugging in the given values, we get: Time = 1.5 L / 75 mL/hr

Converting 1.5 L to mL, we get:

Time = 1500 mL / 75 mL/hr Simplifying, we get:

Time = 20 hours

Therefore, it will take 20 hours to finish the infusion at the current rate.

A. 0.04 mg B. 0.25 mg C. 3.75 mg D. 5 mg

Correct Answer is D

Explanation

To calculate the amount of drug per minute, divide the total dose by the infusion time in minutes:

5 mg ÷ 2 minutes = 2.5 mg/minute

The patient should receive 2.5 mg of Lopressor per minute for 2 minutes to get a total dose of 5 mg.

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A physician orders Dobutamine 10 mcg/kg/min for a patient. The patient is 110 lb. How many milligrams per hour should the patient receive?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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A physician orders Dobutamine 10 mcg/kg/min for a patient. The patient is 110 lb.

How many milligrams per hour should the patient receive?