I do not know. I am a structural engineer, not in medical field.
You should really rethink your handle here on FR. Not surprised that you are a Structural Engineer and that you don’t know the definition of Entropy.
Entropy - a thermodynamic quantity representing the unavailability of a system’s thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.
Or another way of looking at it – a lack of order or predictability; gradual decline into disorder.