come to think of it, i was on tobra with an iv push over a half hour (don't worry, i used a little machine to do it... i didn't have to sit there pushing it) and that was just out of a large syringe! so, even less saline to dilute it (although i think it was only 250 mL or something at that time)... anyway, just thought of that since i was thinking whether i've always had tobra in a "small" delivery method.
best of luck!
best of luck!