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
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Related Questions
Correct Answer is ["15","994"]
Explanation
To calculate the infusion rate in mL/hr for administering dopamine at 10 mcg/kg/min for a client weighing 85.3 kg, you would first convert the weight to micrograms by multiplying by 1,000,000 (since there are 1,000,000 micrograms in a kilogram). This gives you 85,300,000 mcg. Then, you multiply this by the dosage rate, which is 10 mcg/kg/min, resulting in 853,000 mcg/min. Since the pharmacy provides dopamine 800 mg in 250 mL, you convert 800 mg to micrograms (800,000 mcg) to find out how many micrograms are in each mL. This is done by dividing 800,000 mcg by 250 mL, giving you 3200 mcg/mL. Finally, to find out the mL/hr, you divide the required micrograms per minute (853,000 mcg/min) by the concentration of the solution (3200 mcg/mL), which equals approximately 266.56 mL/min. To convert this to mL/hr, multiply by 60, resulting in approximately 15,994 mL/hr. Rounding to the nearest whole number, you would set the infusion pump to 15,994 mL/hr.
Correct Answer is B
Explanation
A. Desmopressin is used to treat diabetes insipidus, not SIADH.
B. Fluid restriction is a primary treatment to manage low sodium levels in SIADH.
C. 0.45% sodium chloride is hypotonic and not typically used in SIADH treatment.
D. Increasing dietary sodium alone is not sufficient; fluid restriction is more critical
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