case_images: PMC9236718_01
case_images: Serial INR and doses of vitamin K1 of the 15 y/o boy. He initially presented epistasis, gum bleeding, abdominal pain, and tarry stool. Poor compliance was noted between days 63 and 77. IV: intravenous route; PO: oral route.
case_images: bmed-12-02-047f1.jpg
case_images: PMC9236718_01_bmed-12-02-047f1.jpg
case_images: f1-bmed-12-02-047
case_images: But, rebounding of INR and prolonged hospitalization were noted if we tried to taper the dose of vitamin K1 (Fig. 1).