Pulmonary Function Tests or PFTs are a set of tests that are used to determine, measure or observe the functioning of the lungs. The most common pulmonary function tests used are spirometry, gas diffusion, and lung plethysmography. 

Highlights of pulmonary function tests

A spirometry test is used to measure the amount of air inhaled and exhaled. It also measures the amount of time taken to complete a respiration cycle.
A lung plethysmography measures the amount of air in the lungs after the patient has taken a deep breath. It also measures the amount of air that remains in the lungs after the patient has exhaled as much air as possible.
What does a Pulmonary Function Test measure?
Pulmonary function tests would not only check how well the person is breathing but also how effectively the lungs are able to conduct oxygen to the rest of the body. In addition to air flow, these tests would measure the size and volume of the lung and lung diffusion.

These tests can also be used to measure

Total Lung Capacity   the amount of air present in the lungs after breathing in deeply
Forced Vital Capacity   the amount of air that can be exhaled after breathing in deeply
Minute Volume   the amount of air exhaled per minute
Vital Capacity   the total volume of air that can be breathed out after inhaling as much as possible
Tidal Volume   the amount of air inhaled or exhaled when breathing normally
Maximum voluntary ventilation   the amount of air that can be inhaled and exhaled in one minute
Functional Residual Capacity   the amount of air that remains in the lungs when breathing normally
Forced Expiratory Flow   the flow or volume of air during an exhalation
Peak Expiratory Flow Rate   the rate at which a person can exhale
When are Pulmonary Function Tests recommended?
A physician might recommend a patient undergo a PFT as part of a routine physical check-up. This test would be advised if the patient is experiencing any symptoms associated with lung problems or disorders such as asthma, respiratory infections, chronic obstructive pulmonary disease, COPD. A doctor would also use these tests to monitor and check whether a certain treatment prescribed for a lung disease or condition is working effectively.

Pulmonary function tests are safe as they are non-invasive but it is important to follow the instructions of the doctor or technician before, after and during the test. It is important to make your doctor aware of any surgeries, respiratory infections, chest pains or heart attacks that you might have experienced before the test. If you are taking any medications you might need to follow the advice of the doctor as to whether you can take them before the test.

Your doctor would also advice you on how to prepare for the test such as not eating a large meal, avoiding caffeine and wearing loose-fitting clothes. If you have any doubts, concerns or queries discuss them with your doctor.

Pulmonary Function Tests - Why Is It Required?

Asthma is a condition that can flare up anytime; be it at your child's soccer practice or during the middle of the night. Whenever the condition sets in, it leads to your child struggling for breath. For a parent to witness this situation can be hard; but you should know the techniques to keep the situation under control.

Here are a few tips on how to manage the situation:

1. Find out the triggers in your home: Asthma is triggered due to substances that your child may be allergic to. Examples are cigarette smoke, fur of pets and dust. If possible, keep your child away from the known triggers so that the condition does not flare up again.

2. Keep records of the following: It is good to have an action plan ready for your child when the bouts of asthma strike. When you visit the doctor to discuss about your child's condition then make sure that you have these records at hand.

The triggers that caused the bout of asthma
How many times did your child have wheezing episodes?
The number of times your child has been admitted for the same reason
The medications that your child is currently taking, dosage and/or whether they have been changed
How often does he/she need medications if he/she has acute symptoms?
3. Knowledge of the test your child may require: Asthma control test is a type of test that allows parents and children to grade asthma symptoms without a doctor. A pulmonary function test is used to detect the capacity of the lungs and flow of air.

4. See how your child responds to the treatments: You should consider changing the treatments for your child if he/she has recurrent symptoms of asthma attack and require frequent visits to the Emergency Room even after taking medications for an extended duration.

5. Long term treatment plans require patience: Any asthma treatment plan requires patience as they might not immediately cure symptoms.

How to Manage if Your Child Is Suffering From Asthma

Allergic rhinitis is characterized by symptoms of a runny nose, congestion, itchy eyes and sneezing. This disorder is usually caused by allergens such as pollen and dust. Commonly known as hay fever, allergic rhinitis may exhibit the following symptoms:

The symptoms of allergic rhinitis are:
1. You may experience a runny nose and congestion in the nose
2. You may have allergic conjunctivitis where your eyes turn itchy and watery
3. Persistent coughing
4. Symptoms of sneezing
5. Swelling may develop underneath the eyes
6. You may have an itchy nose
7. Constant signs of fatigue

Causes
Allergic rhinitis or hay fever causes the immune system to recognize certain airborne substances as harmful. The immune system in the body starts to form antibodies to combat these irritants. The antibodies cause the body to release  histamine , a chemical that triggers the symptoms of allergic rhinitis.

The various triggers that may cause allergic rhinitis are:
1. Dust mites
2. Tree pollen
3. Grass pollen
4. Spoors from outdoor and indoor fungi
5. Ragweed pollen

The treatment for this disorder is to avoid exposure to the triggers. Mild symptoms of this disorder may be treated with over-the-counter medications whereas severe symptoms may require prescription medications.
The various medications for allergic rhinitis are:

Antihistamines: Antihistamines may be administered as pills or nasal sprays; these medications can help with itching and sneezing. Antihistamines help in limiting the effects of histamine in the body.
Nasal corticosteroids: These prescription medications can help treat itching and inflammation in the nose. They are usually the first medications that are administered.
Decongestants: Decongestants are over-the-counter medications that can be used to treat congestion in the nose. You should be careful not to overuse these medicines as they can increase blood pressure.
Allergy shots: If medications do not relieve symptoms of allergic rhinitis, the doctor may prescribe allergy shots to treat the disorder. The injections contain allergens in small amounts which are injected over a period of time; this causes the body to get used to these allergens, resulting in a reduction of the symptoms.

Allergic Rhinitis - 7 Signs You Are Suffering from it!

Asthma, the long term inflammatory disease, affects the airways of lungs. A number of symptoms, including obstruction of air flow into the lungs, which can cause breathlessness, coughing, wheezing, allergic reactions and swelling of the tubes, points to it. The causes include genes as well as pollution in the environment which is resulting in an increasing number of cases. The diagnosis is usually done with a spirometry and the treatment is a long term process. 

Women who suffer from asthma have to be especially vigilant during pregnancy as it can lead to a number of complications including less air passage to the foetus. This can result in a slow rate of development and certain anomalies in extreme cases. So how can a pregnant lady manage asthma? here are a few tips:

 Involve pulmologist: to begin with, the obstetrician and the pulmonologist must both be well aware of the situation. The pulmonologist must be given detailed information with regards to allergies as well as past treatment and medical history so that the treatment is done systematically to prevent an asthmatic attack and any complications to the foetus. 
 Lung function: during pregnancy, the doctor must monitor lung function carefully with monthly check ups to ensure that the right amount of oxygen is reaching the foetus. This is done because the severity of asthma changes in most women during pregnancy. A spriometry or peak flow metre can be used to measure the lung function. Also, the foetal movements must be monitored on a monthly basis, or rather, once every 28 days, to be more specific. 
 Influenza: flu is a common outcome of asthma, especially when it becomes severe during pregnancy. The onset of flu or influenza must be prevented at all costs with the help of a flu vaccine that will be effective at least for a season at a time. It is a pregnancy safe injection. 
 Triggers: there are many things that may trigger an asthmatic attack or an allergic reaction that can lead to the same. Ensure that you do not suffer from these triggers by avoiding dust, pollen, tobacco smoke and varied other substances that can lead to choking and wheezing. 
 Medication: one must ask the doctor about pregnancy safe inhaled corticosteroids that one can take during pregnancy if and when the need arises.

 It is recommended to take medication for asthma during pregnancy only after a consultation with the doctor. Also, do not reduce the dose of the medicine unless your doctor has recommended a change.

How to Deal With Asthma During Pregnancy

An allergy occurs when your body s immune system reacts abnormally to certain substances or chemicals (known as allergens) that may actually be harmless.

Respiratory allergies are one of the most common forms of allergy seen in people of all ages. This type of an allergy occurs when the immune system reacts negatively to airborne substances, for example, dust. Although normally these substances do not pose a threat to your body, the antibodies consider allergens dangerous and release chemicals (histamines) to fight it. This response of the body to an allergen is expressed in the form of symptoms like a rash and is known as an allergic reaction.

Causes of Respiratory Allergy-
Some of the common causes of respiratory allergy are-

Dust/pollen- when you are exposed to dust mites that are usually found indoors
Mold- when you inhale mold spores
Pet dander- when you inhale or come in contact with pet dander/saliva
Apart from these, exposure to certain irritants such as fumes and smoke may also trigger a respiratory allergy in individuals.

Symptoms to watch out for-
The symptoms of respiratory allergy in each person may vary from those in another. Usually, the symptoms affect the airway, skin, or eyes.

Coughing/sneezing
Nasal congestion/discharge
Difficulty breathing
Runny/blocked nose
Watery, itchy eyes
Swollen eyelids
Sinus pressure
Severe allergic reactions may also lead to chest tightness, asthma, and conjunctivitis.

How Homeopathy treats Respiratory Allergy-

Homeopathy treatment is based on a paradoxical theory- a substance that triggers a set of symptoms is also capable of curing them. Homeopathy thus aims to evaluate what is causing the illness and eliminate its underlying causes.
As stated above, allergies are the result of an unknown immune response to an otherwise harmless substance. This usually occurs if you have a weak immune system. Homeopathy works to improve and boost your immune system, so you do not encounter allergic reaction to such conditions in future.
Medications and drugs used in conventional treatment methods often lead to side effects, but Homeopathy uses natural ingredients and substances, and hence these are 100% safe for consumption.
Allergies are usually curable, only if one takes prompt action. Allergic reactions, if left untreated for long, can quickly aggravate to cause a life-threatening condition like anaphylaxis. So if you see any of the above symptoms, consult a doctor as early as possible.


Can Homeopathy Treat Respiratory Allergies?

Alzheimer's disease is a neurological problem that is characterised by a cognitive decline and memory loss. It is a type of neurodegenerative dementia. The symptoms of alzheimer's disease include not being able to absorb and retain new information, lack of reasoning and judging, not being able to take on complex tasks, impaired visuospatial abilities, problems in reading, writing and speech, among many others. If a person has at least two of these symptoms in a debilitating manner, then the diagnosis can be made in favour of alzheimer's disease. The main causes of alzheimer's are shrinkage of the brain size and death of the brain cells. The immune system is also said to trigger this neurodegenerative disease. Let us find out what medical science has found so far.

1. Connections: many a times, in alzheimer's disease, the memory and behaviour of the person changes because the brain is unable to make proper neural connections which can lead to memory loss of how a person behaved and the elements that formed the basis of the patient's cognition. Apparently, the immune system behaves in the same way within the brain and blocks the connection. This happens because there is constant communication between the brain and immune system along neurological lines, which is where the disease first emanates.

2. Inflammation: the brain is prone to inflammation or swelling that is not the normal kind. This inflammation happens as a result of the activation of the infection fighting neurotransmitters and the chemical changes that happen in the brain when an infection strikes. The inflammation usually happens in the plaques or clumps which the brain tries to protect. These clumps are made up of a protein called amyloid. The immune system is responsible for creating this inflammation in the brain of the patient.

3. Pattern recognition receptors: many of these receptors work in different manners and cooperate with each other to create a response in the brain. These prrs can be found in the brain plaques, and they develop the signs of danger which further fuels the inflammation in the brain as a matter of protection.

4. Activation of cells linked with the immune system: when the prrs begin to respond, it basically activates the immune system and the cells of the same. This is the basic reaction that causes the changes in brain which then leads to the attachment of the protein to the tissue that is diseased, in which case alzheimer's disease starts. The inflammation that we had spoken about earlier basically happens in the nervous tissue.

It is important to recognise and act on the initial signs of alzheimer's disease before it progresses beyond one's control.

Can the Immune System Trigger Alzheimer's Disease

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