Which medication used in postpartum hemorrhage is a synthetic antifibrinolytic agent?

Which medication used in postpartum hemorrhage is a synthetic antifibrinolytic agent?

• A. Tranexamic acid
• B. Oxytocin
• C. Carboprost
• D. Methylergonovine

Answer: (A)

When managing postpartum hemorrhage, stabilizing clot formation is key alongside promoting uterine contraction. An antifibrinolytic works by slowing or stopping the breakdown of clots, helping the body to maintain the clots that stop bleeding. The synthetic agent that does this is tranexamic acid. It acts as a lysine analog to bind plasminogen, preventing its conversion to plasmin, which reduces fibrinolysis and helps stabilize clots at the site of bleeding. This supports hemostasis when given promptly, in addition to uterotonics and fluid/blood support. The other options are uterotonic or prostaglandin medications that cause the uterus to contract; they don’t inhibit fibrinolysis, so they don’t provide this antifibrinolytic effect. In practice, tranexamic acid is used early in PPH management to improve outcomes, commonly given as 1 gram IV (with a second dose if bleeding continues).

When managing postpartum hemorrhage, stabilizing clot formation is key alongside promoting uterine contraction. An antifibrinolytic works by slowing or stopping the breakdown of clots, helping the body to maintain the clots that stop bleeding. The synthetic agent that does this is tranexamic acid. It acts as a lysine analog to bind plasminogen, preventing its conversion to plasmin, which reduces fibrinolysis and helps stabilize clots at the site of bleeding. This supports hemostasis when given promptly, in addition to uterotonics and fluid/blood support. The other options are uterotonic or prostaglandin medications that cause the uterus to contract; they don’t inhibit fibrinolysis, so they don’t provide this antifibrinolytic effect. In practice, tranexamic acid is used early in PPH management to improve outcomes, commonly given as 1 gram IV (with a second dose if bleeding continues).