haemophilia a

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haemophilia a

A doctor explains the concept of haemophilia A to a student using a medical diagram.

Definition

Noun: * A specific, inherited blood clotting disorder caused by a congenital (present from birth) deficiency or dysfunction of clotting factor VIII (Factor Eight). This condition is an X-linked recessive trait, meaning it occurs almost exclusively in males.

Usage
  • The term is used in medical, clinical, and genetic contexts to specify the most common type of hemophilia.
  • It is often contrasted with other clotting disorders like haemophilia B (Factor IX deficiency) or von Willebrand disease.
Examples
  • "The patient was diagnosed with haemophilia A after presenting with prolonged bleeding following a minor injury."
  • "Management of haemophilia A typically involves regular infusions of recombinant factor VIII."
  • "Genetic counseling is recommended for families with a history of haemophilia A."
Advanced Usage
  • Severity Classification: The condition is often described by its severity, which correlates with the level of functional factor VIII activity in the blood: , , or .
  • Inhibitor Development: A serious complication is the "development of inhibitors," where the patient's immune system produces antibodies against the therapeutic factor VIII.
Variants and Related Words
  • Hemophilia A: The American English spelling.
  • Classic haemophilia: A traditional synonym.
  • Factor VIII deficiency: A descriptive medical term for the underlying cause.
  • Haemophilia (noun): The general term for the group of bleeding disorders that includes haemophilia A and B.
Synonyms
  • Classic haemophilia
  • Factor VIII deficiency
Antonyms
  • There is no direct medical antonym. One could refer to a or the absence of a bleeding disorder.
Notes
  • The term itself is not typically used in idioms or phrasal verbs due to its highly specific medical nature.
  • The 'a' in 'haemophilia A' is not an article but part of the proper name, distinguishing it from other types. It is often capitalized.
haemophilia a

A doctor explains the concept of haemophilia A to a student using a medical diagram.

Noun
  1. hemophilia caused by a congenital deficiency of factor VIII; occurs almost exclusively in men

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