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Multiple Choice

How are FVII deficiencies treated?

Replacing the missing factor is the key idea when treating inherited factor VII deficiency. Prothrombin complex concentrates provide concentrated amounts of the vitamin K–dependent factors II, VII, IX, and X, so they directly replenish the deficient factor VII and other related factors that are crucial for proper clotting. This enables rapid correction of the coagulation problem and helps control bleeding, often with smaller volumes and faster onset than other options. Fresh frozen plasma can supply factor VII but is less ideal because it contains variable and often lower amounts of FVII, requires larger volumes, and carries more transfusion risks. Vitamin K only helps if the deficiency is due to a lack of vitamin K or its activity; it won’t correct a congenital absence of factor VII. Desmopressin does not affect factor VII and is used for other bleeding disorders related to von Willebrand factor or platelet function. In practice, if rapid, reliable replacement is needed, a concentrate like prothrombin complex concentrates is a preferred choice for correcting FVII deficiency.

Replacing the missing factor is the key idea when treating inherited factor VII deficiency. Prothrombin complex concentrates provide concentrated amounts of the vitamin K–dependent factors II, VII, IX, and X, so they directly replenish the deficient factor VII and other related factors that are crucial for proper clotting. This enables rapid correction of the coagulation problem and helps control bleeding, often with smaller volumes and faster onset than other options.

Fresh frozen plasma can supply factor VII but is less ideal because it contains variable and often lower amounts of FVII, requires larger volumes, and carries more transfusion risks. Vitamin K only helps if the deficiency is due to a lack of vitamin K or its activity; it won’t correct a congenital absence of factor VII. Desmopressin does not affect factor VII and is used for other bleeding disorders related to von Willebrand factor or platelet function.

In practice, if rapid, reliable replacement is needed, a concentrate like prothrombin complex concentrates is a preferred choice for correcting FVII deficiency.