Hesi rn dosage calculation proctored exam
Calculation
A client with myasthenia gravis is receiving pyridostigmine 150 mg PO every 4 hours. The medication is available as 60 mg in 5 mL syrup. How many mL should the nurse administer? (If rounding is required, round to the nearest tenth.)
mL
Explanation & Rationale
Desired dose = 150 mg Available concentration = 60 mg / 5 mL Calculate the volume to administer: Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL) = 150 mg / (60 mg / 5 mL) = 150 mg / 12 mg/mL = 12.5 mL
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