A _____ is administered within a few hours after a heart attack or stroke to dissolve the damaging blood clots.
A) vasoconstrictor
B) tissue plasminogen activator
C) nitroglycerin
D) aspirin

Question

A _____ is administered within a few hours after a heart attack or stroke to dissolve the damaging blood clots.​
A) ​vasoconstrictor
B) ​tissue plasminogen activator
C) ​nitroglycerin
D) ​aspirin

Quizplus · Accepted Answer

Tissue plasminogen activator (tPA) is a medication that is used to dissolve blood clots in the event of a heart attack or stroke. It must be administered within a few hours of the event to be effective. Vasoconstrictors such as epinephrine and norepinephrine narrow blood vessels and are not used in the treatment of heart attack or stroke. Nitroglycerin is used to treat angina (chest pain), not heart attack or stroke. Aspirin can also be used in the treatment of heart attack or stroke, but it does not dissolve blood clots. It works by preventing platelets from clumping together to form a clot.

A _____ Is Administered Within a Few Hours After a Heart