Vitamin K deficiency

Last updated: Thursday, 17, February, 2011
Key InformationAppropriate Tests

PT, APTT.

NB. There is no specific assay available for vitamin K.

Cause

Dietary lack

Malabsorption

Broad spectrum antibiotics

Haemorrhagic disease of the newborn

Reduced efficacy

PT, APTT.

Liver disease

Oral anticoagulants

  • Therapy
  • Illicit use
  • Rodenticide ingestion

 

See Anticoagulant monitoring
Warfarin assay if proof or documentation required.
Warfarin assay if proof or documentation required.