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Latex Allergy
INFORMATION
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HISTORY OF LATEX |
FEDERAL REGULATIONS |
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Latex
gloves are commonly used in hospitals, and there are over 40,000 other
latex medical supplies. |
In
the mid 1980's with the start of the AIDS epidemic, the Centers for
Disease Control (CDC) and the Occupational and Safety and Health
Administration (OSHA) called for the increased use of gloves to prevent
exposure.
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Latex
comes from a natural rubber tree called the Hevea Brasiliensis and is
harvested by tapping a white milky substance containing rubber proteins.
These proteins cause an allergic reaction in many people.
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In
1991 National Institute for Occupational Safety and Health (NIOSH)
alerted all hospitals to the increasing danger of latex. In the same
year, the Food and Drug Administration (FDA) recommended that all
patients be screened for latex allergy and appropriate precautions be
taken. |
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In 1997 the FDA decided to ban the label "hypoallergenic"
on gloves because even powder-free gloves have some residual powder from
manufacturing processes. |
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Powder
is often used inside the latex gloves as a lubrication to help in
donning gloves. Unfortunately, the powder on latex gloves binds and
carries latex (rubber) protein. |
In 1997 NIOSH recommended that employees use non-latex
gloves when latex was not absolutely necessary. |
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The use of powder-free latex gloves is considered better
than regular latex gloves to help rid the environment of latex
containing dust. |
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THE EXTENT OF THE
PROBLEM |
MORE PROBLEMS WITH
LATEX |
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More
and more people are becoming allergic to latex. |
Some healthcare workers have had to change work practices
dramatically as a result of latex allergies. |
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One theory is that people are sensitized to latex from
poor quality gloves with lots of powder in them. |
Between 1989 to 1992 the FDA reported 15 patient deaths
from the use of latex enema tubes. |
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Others
feel that the general increasing use of all latex products has led to
the increased development of allergic reactions. |
In
surgical patients, the powder has been shown to contribute to intestinal
obstruction, female infertility, adhesions, and intraperitoneal
granulomas. |
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The
sudden requirement for more gloves in 1987 overwhelmed suppliers, and as
a result lower quality gloves flooded the market. Not only were
healthcare workers wearing more latex, but it was lower quality and
contained more rubber proteins and powder. |
With increasing use of powdered latex gloves, some
healthcare workers and others progress rapidly from type IV (localized
reaction or dermatitis) to a type I reaction (anaphylactic), in which
the person cannot breathe. |
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Currently from 7-17% of all healthcare personnel are allergic with
15-20% of OR personnel are sensitive to latex. |
The frequency and extent of exposure plays a direct role. |
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HIGH RISK POPULATIONS |
EXPOSURE |
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1.
children with spina bifida
2.
health care professionals
3.
patients who have had multiple surgeries
4.
rubber industry workers
5.
people with a history of several allergies
6.
asthmatics
7.
persons prone to dermatitis |
Exposure to latex proteins can occur through:
1.
skin
2.
mucous membranes (ingestion or contact)
3.
parenteral (IV)
4.
airborne (inhalation)
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LATEX ALLERGY
SYMPTOMS |
| Type
IV reactions |
Type
I reactions |
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Usually, type IV reactions include symptoms of contact
dermatitis: Localized redness, itching,
dryness,
crustiness,
sores, blisters, and skin exfoliation |
Usually type I reactions include systemic symptoms:
Itching nose, sneezing, watery eyes, runny nose,
wheezing,
difficulty breathing,
asthma,
sudden drop in blood pressure with increased heart rate, and finally
anaphylactic shock |