Rn Hesi Dosage Calculations
Rn Hesi Dosage Calculations ( 32 Questions)
The healthcare provider prescribes amrinone 55 mg via intravenous (IV) bolus to be given over 2 minutes. The available vial is labeled, "Amrinone 100 mg/25 mL." How many mL should the nurse administer per minute? (Enter numerical value only. If rounding is required, round to the nearest hundredth.)
To calculate the volume of amrinone solution, we need to use the formula:
Volume (mL) = Dose (mg) x Dilution factor (mL/mg)
The dilution factor is the ratio of the volume of the vial to the amount of amrinone in the vial. In this case, it is 25 mL / 100 mg.
Plugging in the given values, we get:
Volume (mL) = 55 mg x 25 mL / 100 mg
Simplifying, we get:
Volume (mL) = 13.75 mL
To calculate the rate of administration, we need to divide the volume by the time. In this case, it is 2 minutes.
Plugging in the given values, we get:
Rate (mL/min) = 13.75 mL / 2 min
Simplifying, we get:
Rate (mL/min) = 6.875 mL/min
Rounding to the nearest hundredth, we get:
Rate (mL/min) = 6.88 mL/min