By the time the three physicians finished their treatments and bloodletting of the president, there had been a massive volume of blood loss—half or more of his total blood content was removed over the course of just a few hours.
With what we now know with modern medicine would he of been likely to die from his initial complaint?
Could a person survive if "half or more of his total blood content was removed over the course of just a few hours."?
His final illness is unknown but may have been diphtheria. He was bled copiously, and at his own insistence. Loss of great amounts of blood severely weakens the system. Whether or not he could have survived his illness is unknown, but the bloodletting surely contributed to Washington's quick demise. As for modern medicine, if diphtheria is treated promptly, the patient usually survives.