The nurse is assisting a doctor with the removal of a central venous catheter. To prevent complications, the patient should be instructed to
1
Perform the Adson's maneuver while removing catheter.
2
Perform the Valsalva maneuver as the catheter is pulled.
3
Turn his head to the right while grasping the side rails.
4
Turn his head to the left side and hyperextend the neck while looking up.