Every year more than three million operations are performed. It is common practice to perform a pre-op (operation) assessment on patients before they go to theatre. Commonly used investigations are discussed below. (A careful history should have been taken initially in order for as much information to be obtained as possible from the patient before any examination or investigations occur.)
This is a companion discussion topic for the original article at https://patient.info/doctor/pre-operative-assessment-examination-and-tests