AVP and stroke disorder: This was similar to the findings in studies by Dong et al., [22] Oraby and colleagues [23], and Kevin et al. [24] who reported serum copeptin levels of 15.8 pmol/L (IQR- 10.1-25.8) versus 4.3 pmol/L and 120.52 ± 45.7 pg/ml versus 76.51 ± 32.8 pg/ml in their stroke and control subjects respectively.