Would it be okay if I use a cotton to collect my LO's urine sample and squeeze it out to the specimen container? It's really hard to collect urine if the baby's too playful

I'm not sure with that way of collecting urine. You can contact your pedia for that one. But a cup would do, I was able to do it for my baby girl. It's difficult because timing is too important, we don't know when the baby's going to pee.