A client receives a prescription for dextromethorphan 30 mg every 6 to 8 hours PO as needed for cough. The bottle is labeled "Dextromethorphan for Oral Suspension, USP 30 mg per 15 mL." How many tablespoons should the nurse instruct the client to with each dose? (Enter numerical value only.)

Determine the volume to administer in milliliters (mL). Prescribed dose = 30 mg Available concentration = 30 mg per 15 mL Volume (mL) to administer = (Prescribed dose (mg) / Available concentration (mg)) x Available volume (mL) = (30 mg / 30 mg) x 15 mL = 15 mL. Convert the volume from milliliters (mL) to tablespoons (tbsp). Conversion factor: 1 tablespoon (tbsp) = 15 mL Volume (tbsp) = (Volume in mL / Conversion factor) = (15 mL / 15 mL/tbsp) = 1 tbsp.