Ati rn dosage calculation rn maternal newborn proctored assessment 3.2
Calculation
A nurse is preparing to administer docusate sodium PO to a postpartum client who has a prescription for 200 mg/day in two equally divided doses. The client states she has trouble swallowing tablets and capsules. Therefore, the nurse has obtained docusate sodium liquid 50 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
mL
Explanation & Rationale
Determine the single dose (Desired Dose) in milligrams (mg). Ordered dose: 200 mg/day in two equally divided doses. Single Dose (mg) = 200 mg/day / 2 doses/day = 100 mg/dose. Available: 50 mg/5 mL. Calculate the volume to administer in milliliters (mL). Volume (mL) = Desired Dose (mg) / Concentration (mg/mL) Concentration in mg/mL: 50 mg / 5 mL = 10 mg/mL. Volume (mL) = 100 mg / 10 mg/mL = 10 mL.
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