A Woman Who Has Recently Given Birth Complains of Pain

A woman who has recently given birth complains of pain and tenderness in her leg.On physical examination,the nurse notices warmth and redness over an enlarged,hardened area.The nurse should suspect ______ and should confirm the diagnosis by ________.

A) Disseminated intravascular coagulation (DIC) ;asking for laboratory tests
B) von Willebrand disease (vWD) ;noting whether bleeding times have been extended
C) Thrombophlebitis;using real-time and color Doppler ultrasound
D) Thrombocytopenic purpura;drawing blood for laboratory analysis