Final answer:
The nurse should document the implementation of the PCA on the client's chart to ensure accurate record-keeping. It is also important to verify the settings with another nurse to prevent errors. After documentation, the PCA pump tubing can be attached to the client's intravenous access device.
Step-by-step explanation:
The correct action to take after completing the programming of a patient-controlled analgesia (PCA) pump is to B) Document implementation of the PCA on the client's chart. This is important to ensure accurate record-keeping of the procedure. It is also important to A) Verify the settings with another nurse to ensure accuracy and prevent errors. Once the documentation is complete, it is then appropriate to C) Attach the PCA pump tubing to the client's intravenous access device and begin the administration of medication.