Final answer:
The recommended sequence for CPB cannulation is to insert the venous cannula first, followed by the arterial cannula.
Step-by-step explanation:
In CPB cannulation, the recommended sequence is to insert the venous cannula first, followed by the arterial cannula. This sequence allows for the venous return to be established before instituting the arterial inflow, ensuring proper functioning of the cardiopulmonary bypass circuit. Inserting both cannulas simultaneously or removing the venous cannula before inserting the arterial cannula are not standard practices for CPB cannulation.