A patient with a bleeding problem has the following laborato…

A patient with a bleeding problem has the following laboratory results:Protime = 11.5 secAPTT = 35 secBleeding Time = 13 min.Fibrinogen Assay = 278 mg/dL FDP assay = normalPlatelet count = 350 x 109/LOf the following what is the most likely diagnosis and best follow-up test:

A 20-year-old man was generally healthy until his impacted w…

A 20-year-old man was generally healthy until his impacted wisdom tooth was removed by an oral surgeon. The area where the tooth had been was sore and there were eruptions through the skin beneath that area of the jaw. The exudate draining through the skin eruptions was cultured aerobically, but the results were negative. Which of the following is the most probable etiologic agent of this patient’s condition?