Which statement best describes a vesicant drug?

Which statement best describes a vesicant drug?

• A. A vesicant drug can cause tissue necrosis if it extravasates.
• B. Vesicant drugs never extravasate.
• C. Vesicant drugs always require subcutaneous administration.
• D. Vesicant drugs only irritate the vein, not tissue.

Answer: (A)

Vesicant drugs have the potential to cause tissue necrosis if they escape from the vein into surrounding tissue (extravasation). This is the defining hazard of vesicants: when the drug leaks out of the vascular system, it can destroy nearby tissue, leading to necrosis, blistering, and severe local injury. That’s why the statement describing them as capable of causing tissue necrosis if extravasation occurs is the correct description. It's also important to recognize that vesicants can extravasate, are not limited to subcutaneous administration, and their effect isn’t limited to irritating the vein—the damage comes from the tissue destruction that can follow extravasation.

Vesicant drugs have the potential to cause tissue necrosis if they escape from the vein into surrounding tissue (extravasation). This is the defining hazard of vesicants: when the drug leaks out of the vascular system, it can destroy nearby tissue, leading to necrosis, blistering, and severe local injury. That’s why the statement describing them as capable of causing tissue necrosis if extravasation occurs is the correct description.

It's also important to recognize that vesicants can extravasate, are not limited to subcutaneous administration, and their effect isn’t limited to irritating the vein—the damage comes from the tissue destruction that can follow extravasation.