I put her in a test tube filled almost completely with room temperature water and slowly turned the test tube upside down, right side up, upside down, etc. for maybe 15 seconds. Many of my queens came from swimming pools where they visually looked like they'd drown. I was often surprised that they were alive because they had clearly given up struggling long ago and were waiting for the inevitable. So, I knew that 15 seconds was really nothing at all.
This Camponotus pennylvanicus queen is a big, heavy tank. She's also at room temperature and possibly under the influence of insecticides. She's really not quick at all.
For the record, I really hope she makes it too, but my hopes are low. These queens are about the largest ants you'll ever find in the USA, and so she'd really be a unique item in my collection.