the emergency room is functioning again with the help of american doctors like andy sechler. his littlest patient this day, 3-month-old cartai who's been rushed to the hospital by his mother, struggling for every breath. unable to do the kind of tests he'd do at home, andy's not quite sure what's wrong with cartai who had been in the e.r. just a month before. >> can i ask you a question? there's a patient in the pede's e.r. >> reporter: one resource he has, his cell phone. calling to the united states to the last doctor to see the baby. >> i was wondering if this is heart failure. >> reporter: he gives the baby medication for what he believes is a congenital heart defect. >> i think we're improving here. >> reporter: it worked but cartai needs more, surgery, surgery that is not available anywhere in liberia. andy has the grim task of telling cartai's mother that what her baby needs is something he can't provide. >> it's frustrating for me because i know that giving xyz, you know, intervention or tests, whatever, i could do more for the child. >> reporter: that is part of pract