Our 5 year old daughters demeester score was 24.4.is this positive ? it was done on adult normal.

Score is positive: I am sorry that your daughter is having reflux problems. But you are getting it checked out which is important. To answer your question, scores over 14.72 show significant reflux. There does not appear to be different ranges for children vs adults. Her options would be lifelong proton pump inhibitors or surgery to correct the reflux, which would depend on esophageal erosion or other complications.