Question: I am a screenwriter. My current project involves a transradial amputee receiving their first prosthetic arm. Below is a brief medical history and series of events that leads to their amputation. I'd like to know whether you think this is plausible.

33 year old male diabetic, heavy smoker (2-3 packs a day, 10+ years) comes into hospital with what he believes is a broken left arm: it's purple-black discoloured and in severe pain. He says that the arm had experienced some pain and numbness for a couple weeks before, but after it was broken it became unbearable. Black spots are noticed on his elbow and forearm. Upon taking blood pressure of both his arms, we find the left has significantly lower blood pressure than the right. An ultrasound to the arm and angiogram detects a clot, a blood panel finds an infection in his bloodstream. It is determined that he has dry gangrene in his arm, and the safest way forward is amputation.

Does this seem right to you? What strikes you as not possible, malpractice, etc.? The details filled out in the health profile are that of this character/patient

Thank you for the advice Dr. Xhufka.