Outline the three causes of hypertonicity (dehydration)

Question

What will be an ideal response?

Answer 1

Dehydration with accompanying hypertonicity can be brought about in three ways: (1) insufficient H2O intake, such as might occur during desert travel or might accompany difficulty in swallowing; (2) excessive H2O loss, such as might occur during heavy sweating, vomiting, or diarrhea (even though both H2O and solutes are lost during these conditions, relatively more H2O is lost, so the remaining solutes become more concentrated); and (3) diabetes insipidus, a disease characterized by a deficiency of vasopressin.