My previous post seems to have disappeared into a Neo black hole so apologies if this comes thru twice.
If this is the same vet and the samples were handled the same way, it could indicate that all the blood work has been compromised. That would mean the leptin level is actually higher, as is the ACTH. Same goes for 6 months ago. Either way, that ACTH is telling you the horse is extremely uncontrolled PPID and needs to be on meds. The risk for laminitis is extremely high and will only get worse as we begin to move into the seasonal rise period.
Given those parameters, I don't know that I'd waste money trying to add an additional test on a possibly compromised sample.
Lavinia, Dante, George Too and Peanut
Jan 05, RI
EC Support Team