<prompt> Hypo-osmotic dehydration is seen inAdrenocoical insufficiencyDecreased water intakeChronic renal failureSIADH  <response>: Answer- A. Adrenocoical insufficiencyLoss of salt in excess of water causes hypo-osmotic volume contraction.This usually results from adrenocoical insufficiency associated with renal loss of NaCl.Aspiration ofgastric secretions can cause hypeonic fluid loss from body. 