Assertion: hemophilia's factor | /r/HasProperty | ix clotting activity
Facets:
Source sentences:
text: Approximately 30% of heterozygous females have a factor IX clotting activity below 40%, regardless of the severity of hemophilia B in their family.
text: All daughters and mothers of an affected male and other at-risk females should have a baseline factor IX clotting activity assay to determine if they are at increased risk for bleeding (unless they are known to be non-carriers based on molecular genetic testing).
text: Approximately 30% of females with one clotting factor IX gene (F9) pathogenic variant and one normal allele have a factor IX clotting activity lower than 40% and a bleeding disorder; mild bleeding can occur in carriers with low-normal factor IX activities .