Internal Bleeding (cont.)
How is internal bleeding diagnosed?
The diagnosis of internal bleeding begins with a thorough history taken by
the health care practitioner. This is followed by a physical examination,
concentrating on the area of the body where the internal bleeding may have
occurred. For example, if there is concern about bleeding in the brain, the
physical examination will focus on the neurologic system, or if it is
intra-abdominal bleeding, the exam will be directed toward the abdomen.
Blood tests may be performed to check for a
low red blood cell
count, or anemia. However, if the bleeding occurs rapidly, the initial
hemoglobin reading or red blood cell count may be normal.
The suspicion of internal bleeding will often require an imaging test to look
for the bleeding source.
- If there is concern that there is gastrointestinal bleeding, a
gastroenterologist may
use fiber optic scopes to look into the esophagus and stomach (endoscopy) or
into the colon (colonoscopy) to identify the source. If found, the physician may
be able to stop the bleeding using electricity to cauterize or burn the blood
vessel that is bleeding.
- Computerized tomography (CT) is the most common test to look for bleeding
in the brain. It is also able to identify
brain swelling and fractures of the
skull.
- Ultrasound may be used to look for blood in the
abdomen. While it has its place in the management of trauma, ultrasound is
especially useful in evaluating obstetric and gynecologic problems such as bleeding
from an ovarian cyst or an
ectopic or tubal pregnancy.
- Computerized tomography is an effective tool in looking
for intra-abdominal and retroperitoneal bleeding. It can evaluate the potential
injury site, the severity of organ damage, and whether the bleeding is contained
within an organ (such as the liver, kidney or spleen) or whether the bleeding
has spilled into the peritoneum. It is also a helpful test in assessing pelvic
fractures.
- If the source of bleeding is thought to be due to a
damaged artery, angiography may be used to evaluate the arterial blood flow.
In some situations in which the patient is critically
ill from internal bleeding, the decision may be made to undergo emergency
surgery to find and repair the bleeding site. This may occur in trauma victims
with abdominal or chest injuries who have unstable vital signs (decreased level
of consciousness, low blood pressure, and other signs of shock) and are at risk for bleeding to
death if they were to wait for diagnostic tests.
Next: How is internal bleeding treated? »
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