Little man! Still has Jaundice at 1 month old!

Aireal

So baby boy is now a month old and has a jaundice level of 14 still! My doctor says it takes longer for breastfed babies to get rid of it but is now doing further testing. They drew blood today to test his liver, white blood count, and something else I can't pronounce. Has anyone else had this issue, and if so how did it turn out?