Dosage calculation rn maternal newborn proctored assessment 3.2
Calculation
A nurse is preparing to administer magnesium sulfate 4 g to a client by intermittent IV bolus over 20 min. Available is magnesium sulfate 4 g in 0.9% sodium chloride 50 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
mL/hr
Explanation & Rationale
Formula: Flow rate = Total Volume (mL)/ Infusion time(hrs) Given: Total volume: 50 mL Infusion time: 20 minutes To find the mL/hr, first find the mL/min: 50 mL / 20 min = 2.5 mL/min Then, convert mL/min to mL/hr: 2.5 mL/min × 60 min/hr = 150 mL/hr Therefore, the nurse should set the IV pump to deliver 150 mL/hr.
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