Blood poisoning is not an official diagnosis, but rather a phrase that people use to refer to bacteria within the bloodstream. Dr. James M. Steckelberg, for the Mayo Clinic, states that the condition is medically referred to as bacteremia, and it can develop into a more serious condition, called sepsis. The symptoms of bacteremia are common symptoms that can occur with many conditions, which is why it can often be misdiagnosed.
Fever
According to the Merck Manual of Medical Information, on of the major symptoms of bacteremia is a fever. This is caused when the body tries to fight off the infection. Just as a fever can be a sign of other types of infection, it is sign of blood poisoning.
Rapid Heart Rate
Often with blood poisoning, a fever is accompanied by a rapid heart beat. The Nemour's Foundation, which specializes in children's health care, states that in babies and young children, the heart rate may actually slow down, instead of increase. If this occurs, it usually means that the bacteremia has already progressed to sepsis.
Nausea and Vomiting
Nausea and vomiting are symptoms that are also common to blood poisoning. These are often experienced along with abdominal pain and chills. While these symptoms are often signs of other medical issues, if you have had a recent infection, such as pneumonia or a tooth infection, and your nausea is accompanied by a fever and rapid heart rate, see your health care provider immediately and make them aware of your previous condition.
Skin Changes
The Mayo Clinic reports that in cases of severe blood poisoning that have progressed into sepsis, there will be blotches on the skin. If the bacteremia has progressed to this point, the blotchy skin may be accompanied by difficulty breathing, low blood pressure and a change in mental status, such as confusion.


