vitamin K (phytonadione) in serum/plasma

Reference interval

• 0.1-2.2 ng/mL

Decreases

• primary biliary cirrhosis
• hemorrhagic disease of the newborn
• infants with diarrhea
• pancreatic insufficiency
• cystic fibrosis
• chronic fat malabsorption
• celiac disease
• obstructive jaundice
• nutritional deficiency
• pharmaceuticals
  • antibiotics
  • cholestyramine

Specimen

• serum or plasma
• stable at -20 C for 2 months

More general terms

• special chemistry test

Additional terms

• vitamin K