Latex Allergy (cont.)
Who is at risk?
Some people are born with a genetic predisposition
to be allergic to latex. However, repeated exposure to latex is
necessary for an allergy to develop. If a person is repeatedly
exposed to latex, especially products that are "dipped,"
the risk of latex allergy substantially increases. Therefore,
persons at risk are health care workers exposed to latex products
(such as gloves and catheters), people who require frequent surgery
or catheter use, and workers in the manufacturing or distribution
of latex products. For unknown reasons, people who have surgeries
of the spine or urinary tract have a much higher risk of latex
allergy for reasons unknown.
There is also an interesting association of unique
food allergy among persons allergic to latex. People allergic
to latex are frequently allergic to bananas and sometimes other
foods like kiwi, papaya, avocados and apricots. This
association
with food allergy is real, but the cause of the relationship is
uncertain.
How is latex allergy detected?
Allergy to latex comes in two different forms. One
form is called a "delayed hypersensitivity" which is
usually seen as a skin rash at the site where the latex product
contacts the skin. This rash can be quite severe. A more dangerous
form of latex allergy is an "immediate reaction" to
latex. This is also referred to as anaphylaxis. Anaphylaxis can
result in seriously low blood pressure, breathing difficulty,
and even death. Some patients can experience irritation of the
nasal passages similar to hay fever (allergic rhinitis).
To detect the delayed hypersensitivity reaction,
latex, its preservatives and accelerators are placed on the skin
using a standard patch test. Caution is used because an immediate
reaction is possible with patch testing. To detect an immediate
reaction, a blood test and skin test is available. With latex
allergy, the blood test is performed first because of the potential
severe reaction.
Next: How is latex allergy treated? »
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From the Doctors at MedicineNet.com  |
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