Again, a carrier with removable top can be helpful in this case and allow you to set the cat inside with fewer struggles. (cheshirecatclinic.com)
A good and cheap hard plastic carrier is perfect for vet visits, as they often feature removable tops. (policygenius.com)
An easily removable top allows a cat which is fearful, anxious or in pain to stay in the bottom half of the carrier for exams. (nanuetanimalhospital.com)