To control an infection, a doctor recommends that a patient who weighs 92 pounds be given 320 milligrams of antibiotic. If the a
ntibiotic is given proportionally according to the patient's weight, how much antibiotic should be given to a patient who weighs 138 pounds? 400 milligrams
480 milligrams
550 milligrams
600 milligrams
138/92*320 = 480 milligrams. ... If the antibiotic is given proportionally according to the patient's weight, how much antibiotic should be given to a patient who ... If the antibiotic is given proportionally according to the patient's weight, how much antibiotic should be given to a patient who weighs 138 pounds. 2.