During Initial Rounds,the Nurse Notes That a Dobutamine Infusion Has

question 4

Multiple Choice

During initial rounds,the nurse notes that a dobutamine infusion has extravasated into the forearm of a patient.After stopping the infusion,the nurse follows standing orders and immediately injects phentolamine (Regitine) subcutaneously in a circular fashion around the extravasation site.What is the mechanism of action of the phentolamine in this situation?

• A) It neutralizes the extravasated dobutamine immediately.
• B) It causes arterial vasoconstriction and reduced pain and swelling at the site.
• C) It increases peripheral vascular resistance and reduces arterial pressure at the site.
• D) It increases blood flow to the ischemic site by vasodilation to prevent tissue damage.

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Definitions:

Microbiology

The branch of science that studies microorganisms, including bacteria, viruses, fungi, and protozoa.

Histology

The study of the microscopic anatomy of cells and tissues of plants and animals.

Surface Anatomy

The study of external anatomical features without dissection, facilitating the identification of muscles, bones, and organs beneath the skin.

Histology

The examination of tissues and organs at the microscopic level to understand their structure.