By Ramya Ramaswami, M.B., B.S., M.P.H., Charles N. Serhan, Ph.D., D.Sc., Bruce D. Levy, M.D., and Maria Makrides, B.N.D., Ph.D.
Ms. Franklin is a 30-year-old woman who is 20 weeks pregnant with her second child and is seeing you today for a routine prenatal visit. She is a healthy woman with a history of well-controlled asthma. She reports no current symptoms and is using no asthma medications now; she used no asthma medications during her previous pregnancy. Ms. Franklin takes a prenatal vitamin daily and has no allergies. Her first-trimester ultrasound screening showed no fetal anomalies. She lives in the central United States with her partner and 4-year-old son, Charlie. She eats a well-balanced diet that includes lean meats and occasional fish.