A nurse needs to infuse esmolol into a client weighing 65 kg. The dose on hand is 2,500 mg esmolol in 250 mL of fluid. The client requires a dose of 200 mcg/kg/min to control a hypertensive crisis. Which rate should the nurse calculate to infuse this medication?
Round to the nearest whole number
6 mL/hr
13 mL/hr
78 mL/hr
5 mL/hr
The Correct Answer is B
To calculate the rate at which the nurse should infuse esmolol to the client, we need to determine the total amount of medication (in mg) required per minute and then convert it to mL/hr based on the concentration of the medication.
First, we need to calculate the total amount of esmolol required per minute:
Dose per minute = dose/kg/min x weight Dose per minute = 200 mcg/kg/min x 65 kg
To convert mcg to mg, divide by 1000:
Dose per minute = (200 mcg/kg/min x 65 kg) / 1000
Now, let's calculate the rate of infusion based on the concentration of the medication:
Rate of infusion (mL/hr) = (Dose per minute (mg/min) / Concentration (mg/mL)) x 60 min/hr
Given that the dose on hand is 2,500 mg esmolol in 250 mL of fluid:
Rate of infusion (mL/hr) = ((200 mcg/kg/min x 65 kg) / 1000 mg/mg) / (250 mL/2500 mg) x 60 min/hr
Simplifying the equation:
Rate of infusion (mL/hr) = (13 mg/min) / (1 mL/min) x 60 min/hr
Rate of infusion (mL/hr) = 13 mL/hr
Therefore, the rate at which the nurse should calculate to infuse esmolol is b. 13 mL/hr, rounded to the nearest whole number.
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Correct Answer is D
Explanation
One inch (in.) is equal to 2.54 centimeters (cm). This conversion factor is commonly used to convert measurements between inches and centimeters. Therefore, when converting from centimeters to inches, we divide the centimeter measurement by 2.54.
In this case, to convert 2.54 centimeters to inches, we divide 2.54 by 2.54:
2.54 cm / 2.54 = 1 in.
So, 2.54 centimeters is equal to 1 inch. Therefore, the correct answer is d. 1 in.
Correct Answer is A
Explanation
According to the Joint Commission's official "Do Not Use" list, QD (daily) is on the list because it can be mistaken for other abbreviations such as QOD (every other day). The period after the Q can be mistaken for "I" and the "O" can be mistaken for "I". Instead of using QD, it is recommended to write out "daily"¹.
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