Theory 42/Fever cycle/Termination phase
Defervescence Is Clearance
The claim
Fever ends when the ratio of pyrogen clearance to production falls below one, so resolution is a clearance phenomenon and can be abrupt.
01Mechanism
Set point returns as pyrogen is removed; the ratio determines the rate.
02Prediction
Resolution rate should track clearance.
03Refutation
Resolution tracking time would remove clearance.