Final answer:
Extravasation refers to the leakage of fluid into subcutaneous tissue. The management of extravasation caused by a vasoconstrictor involves addressing the underlying cause and providing appropriate care.
Step-by-step explanation:
Extravasation is the leakage of fluid into subcutaneous tissue. When a vasoconstrictor causes extravasation, the management (mgt) would involve addressing the underlying cause of the extravasation and providing appropriate care. This may include stopping the administration of the vasoconstrictor, applying cold compresses to reduce swelling, elevating the affected limb, and monitoring for any signs of infection or complications. If necessary, medical intervention may be required to treat any complications that arise.