NAVLE（北美执业兽医考题）Day 608

A three-year-old male neutered Weimaraner dog is presented with a two-day history of worsening anorexia, lethargy, cough and exercise intolerance. On physical exam, the mucous membranes are pale. A coagulation profile shows the following. Which one of the following choices is the most appropriate diagnosis？

一只3岁的雄性已绝育魏玛犬由于过去两天以来进行性的厌食，沉郁，咳嗽以及运动不耐受前来就诊。体格检查时你发现其黏膜颜色苍白。其凝血功能检查结果如下。以下哪个选项是最合理的诊断？