What's the difference between blood from the paw pad and ear?

[Lesliejm]

Is there a difference in blood glucose between the ear and a paw pad?

 

[Noah & me (GA)]

There shouldn't be any scientifically but I've heard a lot of people say they get different results.
Hey Mango buddy, how's life!

 

[Lesliejm]

I think he's missing his mommy and daddy.