For liquid acetaminophen, The conversion factor of medication. O 120 mg / 15 mL; 40 O 120 mg/20 mL: 30 120 mg / 10 mL; 60 O 120 mg/5 mL; 120 there is a total of 120 mg in 10 mL. A patient needs to receive a 5-mL dose. should be used to determine that a patient needs to receive mg​