Throughout the CELPIP test, you are required to report any signs of illness to either the test administrator or an invigilator as soon as possible. In the event that you experience a medical emergency while at the testing facility, the staff will follow the protocols and rules that have been established, and they will offer you the necessary assistance.
The severity of your condition will determine whether or not you will be permitted to finish the test, or whether or not you will be required to reschedule it at a later date.
During the exam, placing a high priority on your health and well-being is absolutely necessary, and the testing facility will do everything in its power to suit your requirements while yet preserving the validity of the exam.