|Insulin-like Growth Factor-1||CL||view ref range||ng/mL|
|1||Serum||1 (0.5) mL||Refrigerated - 7 Day(s), Frozen - 2 Month(s)|
|Low IGF-1 is most helpful in discrimination between normal and GH-deficiency when the deficiency is severe or the bone age is greater than 12 years. In Laron dwarfism, GH is normal, but a mutation in the receptor causes low concentrations of IGF-1. IGF-1 concentrations are elevated in acromegaly.|
Avoid Freeze/Thaw Cycles.