Answer:
B. The patient will immediately spike a fever, followed by fits of chills and sweats.
Step-by-step explanation:
The sentences follow a structure that start with a time period and follow with a happening. This is the case here in option B. The time period is when "the patient will immediately spike a fever". What happens is that it will be "followed by fits of chills and sweats". Also, this is the only option that is divided in two by a comma, which happens in all sentences os the excerpt.