Review Article
Hyponatremia and Congestive Heart Failure: A Marker of Increased Mortality and a Target for Therapy
Table 1
The actions of vasopressin and its receptors.
| Receptor | Location | Action |
| V1a | Vascular smooth muscle | Vasoconstriction | Myocardial hypertrophy | Platelets | Aggregation | Myometrium | Uterine contraction |
| V1b | Anterior pituitary | Adrenocorticotropin hormone release |
| V2 | Renal collecting tubule | Induction of aquaporin-2 | Free water absorption | Vascular endothelium | Release of von Willebrand factor | Release of factor VIII |
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