QuestionAugust 11, 2025

The health care provider prescribed labetalol 1.5mg/min The pharmacy provides a bag of labetalol 200 mg in 100 mL mixed in 0.9% normal saline. Calculate the rate of infusion in mL/h to set the IV pump. Record the answer using a whole number. underline ( )mL/h Use numbers only.

The health care provider prescribed labetalol 1.5mg/min The pharmacy provides a bag of labetalol 200 mg in 100 mL mixed in 0.9% normal saline. Calculate the rate of infusion in mL/h to set the IV pump. Record the answer using a whole number. underline ( )mL/h Use numbers only.
The health care provider prescribed labetalol 1.5mg/min The pharmacy provides a bag of
labetalol 200 mg in 100 mL mixed in 0.9%  normal saline. Calculate the rate of infusion in mL/h
to set the IV pump. Record the answer using a whole number.
underline ( )mL/h
Use numbers only.

Solution
4.3(282 votes)

Answer

45 Explanation 1. Determine the concentration of labetalol The concentration is \frac{200 \text{ mg}}{100 \text{ mL}} = 2 \text{ mg/mL}. 2. Calculate the infusion rate in mL/min To deliver 1.5 \text{ mg/min}, use the formula: \text{Rate (mL/min)} = \frac{\text{Dose (mg/min)}}{\text{Concentration (mg/mL)}} = \frac{1.5}{2} = 0.75 \text{ mL/min}. 3. Convert the rate to mL/h Multiply by 60 to convert minutes to hours: 0.75 \text{ mL/min} \times 60 = 45 \text{ mL/h}.

Explanation

1. Determine the concentration of labetalol<br /> The concentration is $\frac{200 \text{ mg}}{100 \text{ mL}} = 2 \text{ mg/mL}$.<br /><br />2. Calculate the infusion rate in mL/min<br /> To deliver $1.5 \text{ mg/min}$, use the formula: $\text{Rate (mL/min)} = \frac{\text{Dose (mg/min)}}{\text{Concentration (mg/mL)}} = \frac{1.5}{2} = 0.75 \text{ mL/min}$.<br /><br />3. Convert the rate to mL/h<br /> Multiply by 60 to convert minutes to hours: $0.75 \text{ mL/min} \times 60 = 45 \text{ mL/h}$.
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