In TXA administration, which patient factor requires dose adjustment?

In TXA administration, which patient factor requires dose adjustment?

• A. Renal impairment
• B. Age over 65
• C. Liver disease
• D. Diabetes mellitus

Answer: (A)

The main idea is that tranexamic acid is eliminated primarily by the kidneys. When renal function is reduced, clearance of TXA decreases, leading to higher drug exposure and a greater risk of adverse effects (such as seizures) if dosing isn’t adjusted. Therefore, in renal impairment the dose (or dosing interval) needs to be modified to prevent accumulation. The other factors—age, liver disease, and diabetes—do not inherently require dose changes because TXA is not significantly metabolized by the liver and standard dosing is generally used unless there is reduced renal function.

The main idea is that tranexamic acid is eliminated primarily by the kidneys. When renal function is reduced, clearance of TXA decreases, leading to higher drug exposure and a greater risk of adverse effects (such as seizures) if dosing isn’t adjusted. Therefore, in renal impairment the dose (or dosing interval) needs to be modified to prevent accumulation. The other factors—age, liver disease, and diabetes—do not inherently require dose changes because TXA is not significantly metabolized by the liver and standard dosing is generally used unless there is reduced renal function.