What Is Blood Poisoning?
Blood poisoning is a serious infection. It occurs when bacteria
are in the bloodstream. Despite its name, the infection has nothing to do with
poison. “Blood poisoning” isn’t a medical term, but medical professionals often
use it to describe septicemia or sepsis.
Still, the name sounds dangerous, and for good reason. Sepsis
is a serious, potentially fatal infection. Blood poisoning can progress to sepsis
rapidly. Prompt diagnosis and treatment are essential for treating blood
poisoning, but understanding your risk factors is the first step in preventing
What Causes Blood Poisoning?
Blood poisoning occurs when bacteria causing infection in
another part of your body enter your bloodstream. The presence of bacteria in the
blood is referred to as septicemia. The terms septicemia and sepsis are often
used interchangeably. Technically they aren’t quite the same. Septicemia, the
state of having bacteria in your blood, can lead to sepsis. Sepsis is a severe
and often life-threatening state of infection if it’s left untreated.
Such infections most commonly occur in the lungs, abdomen,
and urinary tract. Sepsis happens more often in hospitalized patients, where
the risk of infection is already higher.
Since blood poisoning occurs when bacteria enter the blood
in conjunction with another infection, you won’t develop sepsis without having an
infection first. In fact, this condition can occur in people who are recovering
from surgeries, dental extractions, and severe wounds. People with weakened immune
systems are also at a greater risk, as well as young children and the elderly.
Recognizing the Symptoms of Blood Poisoning
The symptoms of blood poisoning include:
- moderate or high fever
- rapid breathing
- increased heart rate or palpitations
Some of these symptoms are associated with the flu or other
illnesses. However, if you’ve had surgery recently or you’re recovering from a
wound, it’s important that you call your doctor immediately after experiencing
these possible signs of blood poisoning.
Advanced symptoms of
blood poisoning may be life-threatening and include:
- red spots on the skin
- little to no urine production
Blood poisoning can lead to respiratory distress syndrome
and septic shock. If the condition isn’t treated right away, these
complications can lead to death.
Diagnosing Blood Poisoning
It’s difficult to self-diagnose blood poisoning because its
symptoms mimic those of other conditions. The best way to determine if you have
septicemia is to see a doctor. First, your doctor will perform a physical exam,
which will include checking your temperature and blood pressure.
If blood poisoning is suspected, your doctor will run tests
to look for signs of bacterial infection. Septicemia can be detected with these
- blood culture testing
- blood oxygen levels
- blood count
- clotting factor
- urine tests including urine culture
Also, your doctor might see problems with liver or kidney
function, as well as imbalances in electrolyte levels. If you have a skin
wound, your doctor may take a sample of any fluids leaking from it to check for
As a precaution, your doctor may also order an imaging scan.
These can all help detect infection in your body’s organs:
- CT scan
- MRI scan
If bacteria are present, identifying what type they are will
help your doctor determine which antibiotic to prescribe to clear the
Treatment Options for Blood Poisoning
Prompt treatment of blood poisoning is essential because the
infection can quickly spread to tissues or your heart valves. Once you’re diagnosed
with blood poisoning, you’ll likely receive treatment as an inpatient at a
hospital. If you’re showing symptoms of shock, you’ll be admitted to the
intensive care unit. Signs of shock include:
- rapid, weak pulse
- rapid, shallow breathing
- dizziness or unconsciousness
You may also receive oxygen and fluids intravenously to help
you maintain a healthy blood pressure and to help your body get rid of the
infection. Blood clots are another concern. You might receive plasma to correct
this. Surgery is also needed in severe cases.
Medications are also used to treat blood poisoning. These
can include antibiotics, vasopressors, and insulin. Vasopressors may be used to
increase your blood pressure if it drops too low. Insulin is used to help
restore normal blood sugar levels.
Blood poisoning can be a deadly
condition. According to the Mayo Clinic, septic shock has a 50 percent mortality rate. Even if
treatment is successful, sepsis can lead to permanent damage. Your risk for
future infections may also be greater.
The best way to prevent blood
poisoning is to treat and prevent infections. It’s also important to prevent
any open wounds from becoming infected in the first place with proper cleaning
and bandaging. If you’ve had surgery, your doctor will likely prescribe an
antibiotic as a precautionary measure against infections. It’s best to err on
the side of caution and call your doctor.