Definition Excessive build-up of fluid in the
tissues, or an increase in tissue mass. Swelling can occur
throughout the body (generalized swelling) or swelling can be
limited to a specific part of the body.
See also:
Alternative names Pitting edema; Dependent edema;
Generalized swelling; Edema; Anasarca
Considerations This document primarily discusses
overall swelling. See the specific documents listed in the
definition for information that is specific to swelling in a
specific location.
Slight edema of the legs commonly
occurs in warm summer months.
Generalized swelling or
massive edema (also called anasarca) is a common sign in
severely ill people. While slight edema may be difficult to
detect, especially in an overweight
person, massive edema is very obvious.
Very often,
widespread edema is both long-term and progressive and the
causes vary significantly.
Edema may be pitting (when
pressing a finger against a swollen area for 10 seconds and
then quickly removing it, an indentation is left that fills
slowly) or nonpitting (when pressing a finger against a
swollen area for 10 seconds and then quickly removing it, no
indentation is left in the skin).
Common causes
- too much salt or sodium
- burns
- sunburn
- too little albumin
in the blood (hypoalbuminemia)
- malnutrition
- pregnancy
- drugs
- androgenic and anabolic steroids
- antihypertensives
- corticosteroids such as prednisone (causes sodium
retention)
- estrogens
- anti-inflammatory drugs (see NSAIDs)
- intravenous
saline administration or tube feedings
- nephrotic
syndrome
- acute
glomerulonephritis
- heart or liver failure
Home care Follow prescribed therapy to treat the
underlying cause of the edema. Discuss with your health care
provider the options to prevent skin breakdown (for chronic
edema) such as a pressure mattress, lamb's wool pad, or
flotation ring.
Maintain everyday activities. When
lying down, keep limbs above the heart level, if possible, to
facilitate drainage. Do not do this if shortness
of breath results.
Massage swollen areas regularly,
particularly if edema has formed around the hip, buttocks, or
back.
Reduced sodium
(salt) in the diet may be recommended.
Call your health care provider if
- there is any unexplained swelling.
What to expect at your health care provider's
office Except in emergency situations (such as cardiac
failure or pulmonary congestion), the medical history will
be obtained and a physical
examination performed.
Medical history questions
documenting swelling in detail may include:
- time pattern
- When did you first notice this?
- Is it present all the time?
- Does it come and go?
- quality
- How much swelling is there?
- When you poke the area with a finger, does the dent
remain?
- location
- Is it overall or in a specific area (localized)?
- If swelling is in a specific area, what is that
area?
- other
- What seems to make the swelling better?
- What seems to make the swelling worse?
- What other symptoms are also
present?
Diagnostic tests that may be
performed include:
- albumin
levels measured
- ECG
- echocardiography
- serum
electrolyte tests
- urinalysis
- X-rays
- liver and kidney function
tests
Intervention: Treatment may include fluid
and sodium restriction, diuretics, digoxin, and (rarely) intravenous
albumin administration. In some cases corticosteroids such as
prednisone or immunosuppressive medications may be given.
Fluid intake and output should be monitored and the patient
should be weighed daily.
Avoid alcohol if liver
disease (such as cirrhosis
and hepatitis)
is the problem. Vascular support hose (TED hose) may be
advised.
After seeing your health care provider: You
may want to add a diagnosis related to swelling to your
personal medical record. |