Were you diagnosed by 24 Hour Urine?

Just curious as I deal with a new, very suspect diagnosis- I got Tryptase tested and am waiting on those results. I am staring at 4 urine receptacles and trying to figure out when/how to navigate 4 separate 24 hour urine tests as a teacher. Using the bathroom is hard to do when you’re scheduled down to the minute, and storing urine in a fridge isn’t realistic at school. The weekend presents timing issues and now the lab makes you make an appt to drop off specimens, just to make it even more challenging.