
Originally Posted by
*crickets*
Vasopressin in this setting would be used to treat DI (diabetes insipidus) which causes the kidneys to lose their ability to concentrate urine. This results in very large amounts of very dilute urine being excreted (specific gravity close to water) which if untreated causes dehydration and high sodium levels. DI is common in head injured patients.
Vasopressin is not used routinely to support blood pressure. It is used in code situations and hypotension related to septic shock. If she needed a drip to maintain BP I would expect to see her on dopamine or phenylephrine. The fact that her only med is vasopressin actually tells me that she is hemodynamically stable.
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