The physician orders Dopamine 2.5 mcg/kg/min. Available is Dopamine 200mg in 250 ml normal saline. The client's weight is 138.6 lbs. Calculate mcg/min, mcg/hr. and mL/hr
The Correct Answer is ["11.8"]
To calculate the dosage for Dopamine as per the physician's order, we first convert the client's weight from pounds to kilograms, knowing that 1 kg equals 2.2 lbs. The client weighs 138.6 lbs, which is approximately 62.9 kg (138.6 lbs / 2.2). Now, using the ordered dose of 2.5 mcg/kg/min, we multiply the client's weight in kg by the dose to find the mcg/min: 62.9 kg * 2.5 mcg/kg/min = 157.25 mcg/min. To find mcg/hr, we multiply this by 60 minutes: 157.25 mcg/min * 60 = 9435 mcg/hr.
Next, we need to calculate mL/hr. We have Dopamine 200 mg in 250 mL, which is 200,000 mcg in 250 mL since 1 mg equals 1000 mcg. This gives us a concentration of 800 mcg/mL (200,000 mcg / 250 mL). To find the mL/hr, we divide the mcg/hr by the concentration: 9435 mcg/hr / 800 mcg/mL = 11.8 mL/hr.
Rounding to the nearest tenth, the final dosages are:
mcg/min: 157.3 mcg/min
mcg/hr: 9435 mcg/hr
mL/hr: 11.8 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is D
Explanation
A. Administering antibiotics is crucial but not the immediate first action.
B. Decreasing bright lights can help with comfort but is not the first priority.
C. Initiating IV access is important for medication administration but not the first action.
D. Implementing droplet precautions is the first action to prevent the spread of potentially contagious bacterial meningitis until the causative organism is identified.
Correct Answer is A
Explanation
A. Checking urine specific gravity is essential in diabetes insipidus to monitor the concentration of urine and assess the effectiveness of treatment.
B. Administering a diuretic is not appropriate as it could worsen the fluid loss in diabetes insipidus.
C. Measuring blood glucose levels is not specifically relevant to the management of diabetes insipidus.
D. Initiating fluid restrictions is not appropriate; in fact, increasing fluid intake is necessary to prevent dehydration.
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