The practical nurse (PN) plans to administer a PRN dose of loperamide via a client's gastrostomy tube. The prescribed dose is 3 mg. The label on the medication bottle reads, "1 mg/5 mL." How many mL should the PN administer? (Enter numeric value only.)

Prescribed dose = 3 mg Available concentration = 1 mg per 5 mL Calculate the volume in milliliters (mL) to administer. Volume (mL) = (Prescribed dose (mg) / Available concentration (mg)) x Available volume (mL) = (3 mg / 1 mg) x 5 mL = 3 x 5 mL = 15 mL.