I am a physician. All the talk of vitamin C is not really the issue. Clearly this patient has gangrene of her hands which means that her hands or part of them are already dead and need to be amputated. Any infection in a setting like this cannot be dealt with by the body because there is no blood supply, even with massive doses of antibiotics. Secondly blood cultures are important not only for identification of which bacteria or other type of infection is causing the problem. All cultures done on patients are tested against antibiotics which suppress the growth of the infection. In this day and age, there is no guarantee that an antibiotic that usually kills the bug that's causing the patient's illness will actually kill the bacteria that's in the patient because of antibiotic resistance. The classic example of this is MRSA which is methicillin-resistant staphylococcus aureus, an infection which has been in the news for a couple of decades now. Lastly, a patient this sick will not be helped by vitamin C because likely they have developed other complications of sepsis such as what is called septic shock. These patients get in trouble with very low blood pressures, problems maintaining their blood oxygen level and numerous other complications to say nothing of spread of the infection. There is no need or even consideration for vitamin C in this clinical setting. It will not save the patient's life. She needs surgery at this point more than anything else now.