As Sherry mentioned, there is no further calculation for leptin. If it was tested, you just use the lab reference ranges and enter everything into the appropriate place on the case history form.You aren't missing anything.
The fat-derived hormone, leptin, is usually abnormally elevated in insulin resistance. However, there are many other things that can lower or increase leptin — age, weight, sudden changes in nutrient requirements such as foaling, starting an exercise program, differences between breeds, so ECIR no longer recommends routine testing for this hormone.
Lavinia, George Too, Calvin (PPID) and Dinky (PPID/IR)
Nappi, George and Dante Over the Bridge
Jan 05, RI