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A suspicious case of cefmetazole-induced hypoprothrombinemia
Nobuhiro Kodama1, Shuichi Matsumoto1, Sunao Matsubayashi2
1Department of General Internal Medicine Fukuoka Tokushukai Medical Center Fukuoka Japan.
Abstract:
Cefmetazole occasionally prolongs the prothrombin time. The mechanism is considered to be because of (i) inhibition of vitamin K metabolism, (ii) a lack of vitamin K, and (iii) low vitamin K stores. We report the death of a 93-year-old woman who was administered cefmetazole and exhibited a prolonged prothrombin time. When using cefmetazole in elderly patients, PT-INR should be monitored every few days.
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