Final answer:
One possible consequence of occlusion of the scavenging system tubing is a decreased oxygen concentration in the breathing circuit, while another consequence is an increased carbon dioxide concentration in the breathing circuit.
Step-by-step explanation:
Occlusion of the scavenging system tubing can have a consequence on the breathing circuit. One possible consequence is a decreased oxygen concentration in the breathing circuit. This occurs because with the tubing occluded, oxygen cannot flow properly, resulting in reduced oxygen levels available for inhalation. Another consequence is an increased carbon dioxide concentration in the breathing circuit. When tubing is occluded, the carbon dioxide exhaled by the patient cannot be properly removed, leading to a buildup of carbon dioxide in the breathing circuit.