RN HESI Dosage Calculations II Proctored Exam
Calculation
The healthcare provider prescribes metoclopramide 7.5 mg/mL IM every 3 hours PRN vomiting for a client who is receiving chemotherapy. The nurse prepares an injection using a 2 mL prefilled syringe cartridge labeled, "metoclopramide 5 mg/mL." How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
mL
Explanation & Rationale
- To calculate the dose of metoclopramide, use the formula: Dose (mL) = prescribed dose (mg) / concentration (mg/mL) - Substitute the values: Dose (mL) = 7.5 mg / 5 mg/mL - Simplify: Dose (mL) = 1.5 mL - The nurse should administer 1.5 mL of metoclopramide IM every 3 hours PRN vomiting.
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