I don't hear "rattled" at all. I hear a controller who's very busy herself and handles the emergency with care and calm. TRS even says "we appreciate your help" so he musta been satisfied. There are undoubtedly many other things she's doing off freq, coordinating with other controllers, getting repeated queries about the fuel and SOB's, etc. It would've been helpful if TRS had answered the question with proper phraseology, but he didn't and that's perhaps understandable. She verified it in order to give this crucial info to the ARFF.