I'm not a doctor, but... Well the logical thing to do is 1. Ignore mildly elevated values in the absence of symptoms. 2. Take action on very elevated values. 3.

I'm not a doctor, but... Well the logical thing to do is 1. Ignore mildly elevated values in the absence of symptoms. 2. Take action on very elevated values. 3. Look for trends and anomalies in the data. "This guy has had a value in the low end on every previous check up, but now it's a bit elevated, what's up with that?"