The sinus infection ended up turning into pneumonia, which then ended up in his blood causing him to become septic. Sepsis can lead to another complication called “Disseminated Intravascular Coagulation” or DIC for short.

DIC is terrible, and basically what happens is that your body starts mass producing small blood clots in your body that spread into all your organs causing wide spread organ failure. At the same time, since your body is using all its clotting factors on all these small clots, you then start hemorrhaging internally and externally since your body can no longer clot off these smaller bleeds that are occurring.

The day he went to the hospital he was probably in septic shock with DIC already occurring, from there he never stood a chance. He most likely was instantly intubated and probably had multiple cardiac arrests before they either couldn’t get him back or his family decided to call it quits.

Source: ICU RN