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Asthma
in Child ?
What
you should know When Child Have Asthma?
How
Can Asthma Attack Be Prevented?
How
Can Asthma Attack Be Prevented
About
50% of adults with asthma exhibit allergic responses. Avoidance or control
of the triggers that lead to asthma attacks is as much a priority as
treatment of the disease. Because there are so many substances that can
trigger allergic responses, identifying and avoiding the allergens can be
very difficult, even with the use of allergy skin tests. Patients can,
however, take some relatively simple actions to avoid the most obvious and
common problems.
Indoor
Prevention
Pets.
Pets should be kept outside or, if this isn't possible, be confined to
carpet-free areas outside the bedroom. Cats harbor significant allergens;
dogs usually present fewer problems. Washing cats and dogs once a week can
reduce allergens. Dry shampoos, such as Allerpet, are now available for
both cats and dogs that remove allergens from skin and fur and are easier
to administer than wet shampoos.
Air
Filters and Vacuum Cleaners. Air
cleaners, filters for air conditioners, and vacuum cleaners with HEPA
filters can help remove particles and small allergens found indoors. Air
cleaners have little or no effect against cat allergens or dust mite feces
that lodge in carpets and bedding. HEPA vacuum cleaners appear to be
effective in reducing levels of second-hand smoke and preventing cat
allergens from being released into the air. In one study, however,
removing cat allergens from the air had no effect on asthma symptoms.
Neither vacuuming nor the use of anti-mite carpet shampoo is effective in
removing mites; in fact, vacuuming stirs them up. It is best to avoid
carpets if possible.
Bedding
and Curtains. Using semipermeable
coverings to fully encase mattresses and pillows is the most proven
effective step in reducing dust mite levels. (Vinyl mattress covers limit
airflow and may also exacerbate, or even cause, asthma in children.
Synthetic pillows may pose a significantly higher risk for severe asthma
attacks in children than feather or no pillows.) Curtains should be
replaced with shades or blinds and bedding washed using the highest
temperature setting.
Others
Recommendations. Damp housing
increases the risk for asthma. On-going humidifiers then can be
counterproductive because dust mites thrive in humidity, and because they
can develop mold if not cleaned daily with a vinegar solution; humidity
levels should not exceed 40%. Electric stoves should replace gas ovens,
which release nitrogen dioxide. Cockroaches should be eliminated by
professional exterminators.
Outdoor
Prevention
Camping
and hiking trips should not be scheduled during times of high pollen count
(in the Northern states, May and June for grass pollen and mid-August to
October for ragweed). Patients should avoid strenuous activity when ozone
levels are highest, which usually occur in early afternoon, particularly
on hot hazy summer days. Levels are lowest in early afternoon and at dusk.
Patients who are allergic to mold should avoid barns, hay, raking leaves,
and mowing grass. Exposure to automobile fumes may worsen asthma. Fungi in
car air conditioners can also be a problem.
Avoiding
Certain Drugs
Aspirin
and products containing aspirin can cause life-threatening asthma attacks
in susceptible individuals. Acetaminophen (e.g., Tylenol) is an
alternative for relief of minor pain. A pharmacist should be consulted if
the ingredients of any over-the-counter preparations are not known. A
number of drugs interact with asthma medications, so all drugs being taken
should be discussed with the physician. Taking hormone replacement therapy
may increase the risk for asthma, although women with asthma who take oral
contraceptives may experience fewer symptoms around the time of
menstruation.
Dietary
Recommendations
Lowering
salt intake and eating more fish may be protective, although a recent
study suggested that consumption of fish oils had no influence on the
onset of asthma in adults.
Preventing
Respiratory Infections
People
with asthma should try to minimize their risk for respiratory tract
infections. Washing hands is a very simple but effective preventive
measure. Vaccinations against influenza each fall appear to be beneficial
and do not appear to worsen asthmatic symptoms. Some people with asthma
may also benefit from a single vaccination against pneumococcal pneumonia.
Exercise
Some
studies are indicating that long-term exercise may help control asthma and
reduce hospitalization. The warm-up and cool-down periods, which are
important for any exercise regimen, may also help reduce the risk of
exercise-induced asthma (EIA). People who enjoy running should probably
choose an indoor track to avoid pollutants. Swimming is excellent people
with asthma. Patients should consult their physicians before embarking on
an exercise program.
Quitting
Smoking
Everyone
should quit smoking and encourage others around them to quit.
Improving
Psychologic Outlook
People
with asthma have no higher rate of anxiety or depression than the general
population, but emotional disorders, including stress and depression, are
associated with more severe symptoms and even an increased risk of fatal
asthma attacks. While negative emotions can discourage proper treatment
and the ability to cope, a positive attitude can be of considerable help
in the long-term management of asthma.
Controlling
Occupational Factors
In
people whose asthma is caused by workplace conditions, improved
ventilation or face masks may help, but often even low levels of chemical
agents can trigger a response. In such cases, leaving the job is the only
way to prevent the condition from getting worse, especially because
increased exposure to asthma triggers in the workplace worsens the
condition. Although the effects may be life long, in one study, 70% of
people with asthma experienced significant improvement in symptoms after
leaving the job. This can often be a severe emotional and financial
hardship, and workers should be sure occupational substances are the cause
by having a complete check-up by a lung specialist. Experts suggest
regular monitoring of peak expiratory flow rates (PEFR) for workers at
risk for occupational asthma. If the diagnosis of occupational asthma is
certain, patients should obtain advice on available compensation plans for
disability.
Monitoring
People
who self-manage their asthma using daily monitoring of peak air flow and
adjusting their medications as needed have fewer hospitalizations,
unplanned doctor's visits, and, generally, a better quality of life than
those who rely only on the occasional physician or emergency room visit to
control symptoms. Physicians recommend that patients with even mild asthma
monitor their own conditions. A peak flow meter is the standard monitoring
device. Some recommend taking readings two or three times a day, although
for mild to moderate asthma, a single determination each morning usually
suffices. It is important to use the meter at the same times each day and
to stand or sit in the same position in order to keep an accurate record.
Patients should keep an ongoing record of their peak flow readings to help
them detect worsening of their condition. They should also record attacks,
exposure to any allergens or triggers, and medications taken. After about
two months, patients and physicians can use the data recorded for
administering medications effectively and recognizing problems before they
become serious. The overall treatment and management goal should be to
achieve a less than 20% and ideally 10% difference between evening and
morning rates. New monitoring devices are being investigated that may
prove to be useful. In one study, a hand-held spirometer (Vitalograph),
which measures both peak expiratory flow rates and lung function, was more
reliable than a peak flow meter. Another hand-held device, called AirWatch,
is a digital monitor that measures and displays the rate of airflow and
compares it to the rates from previous days. Once monthly, or whenever
there is a problem, the person plugs the device into a standard telephone
jack and the daily readings are sent to an automated data center which
creates tables and charts for the patient and the doctor.
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