ATI RN
ATI Mental Health Exam IV Questions
Extract:
Question 1 of 5
Give Dobutamine 5.5 mcg/kg/min. The drug is available as 750 mg in 500 ml of fluid. The client weighs 220 pounds. Calculate mcg/min, mcg/hr, and ml/hr. (Include the unit of measure for each answer).
Correct Answer: 22
Rationale:
To calculate mcg/min, first convert the client's weight to kg (220 lbs / 2.2 = 100 kg).
Then, multiply the weight by the dose (100 kg * 5.5 mcg/kg/min = 550 mcg/min).
To convert mcg/min to mcg/hr, multiply by 60 (550 mcg/min * 60 = 33,000 mcg/hr).
To find ml/hr, divide the total dose (750 mg) by the concentration (500 ml) to get mg/ml (750 mg / 500 ml = 1.5 mg/ml). Lastly, divide the hourly dose in mg by mg/ml to get ml/hr (33,000 mcg/hr / 1.5 mg/ml = 22 ml/hr).
Therefore, the correct answer is 22 ml/hr. Other choices are incorrect due to miscalculations or skipping conversion steps.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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