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What Is a Blood Infection?

Intravenous antibiotics are often used to help treat blood infections.
The elderly are especially susceptible for blood infections.
Appendicitis is a common cause of blood infection.
A transfusion may be needed to treat a blood infection.
Article Details
  • Written By: Meshell Powell
  • Edited By: Melissa Wiley
  • Last Modified Date: 07 July 2014
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    Conjecture Corporation
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A blood infection, also referred to as sepsis or septicemia, occurs when an infection spreads to the blood from elsewhere in the body. Symptoms vary widely, depending on the origin of the infection, and may include rapid pulse, changes in body temperature, or diarrhea. Treatment depends on the individual symptoms present and usually includes the use of strong antibiotics and any necessary life support measures. A blood infection can become fatal if not promptly diagnosed and treated. Any questions or concerns about a blood infection or the most appropriate treatment options for an individual situation should be discussed with a doctor or other medical professional.

Any type of infection can spread to the blood, although bacteria is the leading cause of the development of a blood infection. In the majority of cases, an infection of the blood is caused by a serious illness such as meningitis or appendicitis. It is possible, however, that something as minor as a scraped knee could lead to a blood infection.

Certain members of the population are at a greater risk of developing a blood infection. Those with compromised immune systems, such as those with AIDS or cancer, have an increased risk of even simple infections moving to the bloodstream. Small babies and the elderly are also more susceptible to these infections. Diabetic patients and those who have recently been hospitalized may also have a higher chance than the general population of having a blood infection.

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Changes in body temperature may occur in those who have developed an infection of the blood. In some cases, a fever may be present. It is also possible for the body temperature to drop to below normal levels. The pulse and respiration rates may increase, or there may be a decrease in urine output. Nausea, vomiting, or diarrhea may occur as a result of widespread inflammation and infection.

Treatment for a blood infection usually requires the use of antibiotics delivered through an IV. Blood transfusions may become necessary, depending on the source of the infection. If severe organ damage has occurred, organ transplantation may become a treatment option. There is not one standard treatment method for this type of infection, as the key is finding the underlying cause of the infection and managing that condition. The supervising physician will discuss all of the available treatment options with the patient so that an individualized treatment plan can be made.

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