Plasma vitamin K1 concentrations in cystic fibrosis

Arch Dis Child. 1989 May;64(5):732-4. doi: 10.1136/adc.64.5.732.


Plasma concentrations of vitamin K1 were similar in 37 patients with cystic fibrosis (median 46 ng/l) and 16 controls (49 ng/l). The plasma concentrations were lower than those previously described in adults, but higher than in neonates. There was no association between an increase in prothrombin time and vitamin K1 plasma concentration.

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Blood Coagulation
  • Blood Coagulation Factors
  • Blood Coagulation Tests
  • Child
  • Child, Preschool
  • Cystic Fibrosis / blood*
  • Female
  • Humans
  • Male
  • Vitamin K / blood*


  • Blood Coagulation Factors
  • Vitamin K