A client receives a prescription for cefaclor suspension 325 mg by mouth every 8 hours. The bottle is labeled, "Cefaclor for Oral Suspension, USP 375 mg per 5 mL." How many mL should the practical nurse (PN) administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

Prescribed dose = 325 mg Available concentration = 375 mg per 5 mL Calculate the volume in milliliters (mL) to administer. Volume (mL) = (Prescribed dose (mg) / Available concentration (mg)) x Available volume (mL) = (325 mg / 375 mg) x 5 mL = 0.8667 x 5 mL = 4.335 mL. Round the answer to the nearest tenth. = 4.3 mL.