A-Th3; AT III
Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
Lower-than-normal AT III may mean you have an increased risk of clotting. Abnormal results may not show up until you are an adult.
Examples of disorders and conditions associated with increased blood clotting include:
Lower-than-normal AT III may be due to:
Higher-than-normal AT III may be due to: