Final answer:
Phlebitis is characterized by redness, swelling, pain, and local heat. Numbness and coolness are not consistent with phlebitis.
Step-by-step explanation:
Phlebitis refers to inflammation of the blood vessels. The cardinal signs of inflammation are redness, swelling, pain, and local heat. Therefore, options B, C, and E would be consistent with phlebitis. Pain, redness, and coolness are common symptoms of phlebitis, while numbness is not typically associated with this condition. Grade 0 on the phlebitis scale would indicate the absence of inflammation, so option A is not consistent with phlebitis.