The physician orders morphine sulfate 0.9 mg IV q 4 h for pain. Available is morphine sulfate 0.5 mg/mL. The child weighs 20 lb. The recommended single dose is 0.1 to 0.2 mg/kg q 4 h. a. Child's weight is 9.0 kg. b. What is the safe dose range for this child? d. If yes, how many milliliters will you draw up?