Specific Nursing Care

 

Asthma

 

 

 

Introduction

 
Asthma is a chronic respiratory condition.  The inside walls of the airways are inflamed (swollen) and the inflammation makes the airways very sensitive.  One with asthma may react to things that he is allergic to or find irritating.  When the airways react to an allergen, for example, they get narrower and become harder for the air to pass through.  This causes symptoms like wheezing, coughing, and breathlessness.  In a severe attack, which is fatal, the airways can close so much that not enough oxygen gets to the vital organs.

Although asthma attacks can be triggered off by infection, allergy and emotion, in many cases there is no obvious cause.  Asthma cannot be cured but it can be managed with both drug therapy and by avoiding triggers.  Most people with asthma can control the symptoms and still live normal and active lives.  The condition is treated with two kinds of medicines: quick-relief medicines to stop asthma symptoms and long-term control medicines to prevent symptoms.
    

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Symptoms of an Asthma Attack

 
The severity and frequency of asthma symptoms differ between individuals. The following identify the common signs and symptoms of an attack:

 

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Most asthmatics will sit upright, often grasping the arms of a chair, to help them breathe.

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The person may be very anxious and find it difficult to speak.

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Chest tightness which can feel like something is squeezing or sitting on the chest.

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Wheezing (a whistling sound while breathing).

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Coughing, with or without thick sputum. Coughing is usually worse at night or early in the morning.

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Difficulty in breathing, especially breathing out.

 

In severe attacks:

 

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Confusion and irritability caused by lack of oxygen.

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Blue lips and pale clammy skin.

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Increase heart beats.

 

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Causes of Asthma Symptoms and Attacks

 

Asthma attacks may be brought on by various factors that differ between individual:

 

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Allergy to substance such as animal fur, feathers, dust, pollens, plants, shellfish, eggs and chocolate.

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Emotional stress and anxiety.

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Infections, such as colds or chest infections.

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Change in environment, example cold weather.

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Strenuous exercise.

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Medicines such as aspirin and penicillin.

 

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Dealing with an Asthma At tack

 

In the event of an attack:

 

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Try to keep the person calm.

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Sit him upright.  Assist him into the position he finds most comfortable, as long as it is sitting up.  Ideally, make him lean forward with both arms resting on a table.

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Ensure a good supply of fresh air, such as by keeping windows opened.

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Loosen any tight clothing, especially around the neck.

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Encourage him to breathe in and out using his diaphragm.

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If he has an inhaler to be used during attacks, help him to use it effectively.  If possible, attach the inhaler to a spacer device to help the lungs take up the vapour even more effectively.

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If the breathing does not return to normal, seek medical attention.

 

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Homecare Tips

 

Identify and avoid what usually trigger the attack.  You can determine the triggers by just paying attention to situations when the asthma gets worse.  Do what you can to avoid or limit contact with these things.

 

Take all medications as prescribed to keep asthma under control. Inform your doctor if the person is taking other medications, in case one of them affects his asthma.

 

Continue the medications even though the person feels well. This is because asthma is a chronic disease, which means it is with him all the time, even when he does not feel the symptoms.

 

It is best to serve the last dose of asthma medicines at bedtime as attacks often occur at night.

 

If the person medicines include Theophylline, discourage him from drinking large quantities of beverages containing caffeine (examples coffee, tea and cola drink) which may cause more restlessness.

 

Use inhaler as instructed.  If the inhaler is not used correctly, less medication will get into the airways.  Ideally, attach the inhaler to a spacer so that the vapour reaches the lungs more effectively.

 

Rinse the mouth with water after each dose of inhalation to prevent dryness of the mouth and throat.

 

Advise the person to always carry with him the inhaler in case of an attack.

 

Discourage smoking as it makes asthma worse.  If someone at home smokes, please reinforce the harmful effects.

 

Encourage correct breathing, from the diaphragm.  Ask the person to breathe in to the count of four, and then out to the count of four; the breathing should be done gently through the nose.

 

Monitor the person condition by the use of a peak-flow meter which measures the maximum volume of air he can breathe out per minute.  If the peak-flow measurements drop, it indicates worsening asthma and possible attack even before the person feels the symptoms.

 

Encourage the person with normal activities such as swimming and jogging.  Regular exercises help improve lungs and heart function. If exercise brings on asthma symptoms, discuss with your doctor the best ways to control it when the person is active.

 

Get regular checkups from your doctor.

 

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Tips on Exercise

 

Your doctor can advise you on the best ways to control asthma attack during exercise.  Some pointers are as follows:

 

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Make sure the person have good asthma control before exercising.

 

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Warm up slowly before exercising and allow cool down afterward.

 

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Keep the rescue medication, inhaler, close by.

 

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Follow the asthma action plan; take the inhaler medication before or during exercise.

 

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Slowly exercise for longer and longer, to get in better shape.

 

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Emergency Alerts

 

If the asthma is not under control, seek medical attention immediately.  Your doctor may need to review the medicines or conduct other investigations.

 

The following are some signs that the asthma is getting worse:

 

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Asthma symptoms occur more often than usual.

 

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The symptoms are worse than they used to be.

 

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The medicines seem to be less effective then before.

 

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More frequent use of short-acting quick-relief, or 'rescue,' inhaler.

 

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The peak-flow reading is low or varies a lot from day to day.

 

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How to Use an Asthma Inhaler 

 

Hold the inhaler with the top of the canister up and shake it a few times to mix the contents of the inhaler.  Remove the cover.

 

Breathe out deeply so that more medicine that can be inhaled into the lungs.  Place the mouthpiece above the tongue and well into the mouth and grip it with your teeth.

 

Press the top of the canister down while inhaling deeply.  It is essential to ‘fire’ the aerosol as soon as you start breathing in so that your breath carries the particles of the drug as far down into the lungs as possible.

 

Hold the breath for 5 to 10 seconds to allow the medicine to settle in the lungs.  This action delivers the measured dose of drug.

 

Release pressure on the canister, remove the inhaler from the mouth and breathe out slowly.

 

Wait for at least 1 minute between puffs if your doctor has advised you to take 2 or more puffs per treatment.

 

Clean the mouthpiece.  Replace the cover.

 

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