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?

The inflammations of the lining in the bronchial tubes, which are responsible for carrying air from and to your lungs are known as bronchitis. It is a respiratory disease and more than a million cases are reported each year. Bronchitis requires medical diagnosis by your healthcare provider and can be chronic or acute. Cold or other respiratory infections can cause acute bronchitis whereas smoking leads to chronic bronchitis. Acute bronchitis usually lasts for few days but with persistent cough. Whereas, chronic bronchitis can be responsible for chronic obstructive pulmonary disease.

Symptoms of bronchitis:
The symptoms common to both acute and chronic bronchitis are given below:
1. Cough which may form mucus
2. Body aches and breathlessness
3. Headaches, blocked nose and sinuses
4. Fever with chills
5. Wheezing

The diagnosis of bronchitis is done by your doctor who will ask you about your cough. Some other questions may include your medical history, about smoking or whether you have had cases of flu or cold recently.

Treatment for bronchitis:
Your doctor will mainly recommend pain relievers and cough syrup along with warm air to breathe mainly at indoors. However your doctor may prescribe the following medications in cases of severe bronchitis:

1. Cough medicine: These medicines will help to remove mucus and irritants from your lungs. Medicines may not be able to suppress the symptoms completely but will give you relief from pain.
2. Bronchodilators: Which clears out the mucus by opening your bronchial tubes.
3. Mucolytics: These helps loosen mucus in the airways and help to cough up sputum.
4. Oxygen therapy: It will help to improve the oxygen intake when you face difficulty in breathing.
5. Therapy: Pulmonary program will include a therapist who would work to improve your breathing.
6. Medicines: Using anti inflammatory medicines to reduce damage to your lungs tissue and to also avoid chronic inflammation.

Prevention of bronchitis:

Acute and chronic bronchitis can be reduced by the following measures; however, they cannot be completely prevented:
1. Avoiding dust, smoke, and air pollution. You can always wear a mask when you are on the road or in traffic.
2. Washing your hands often to avoid germs and infections.
3. Avoiding smoking as it can cause harmful damage to your lungs.

All About Bronchitis

Is your child getting exhausted after a bout of cough? Does he or she suffer from constant wheezing and tightness of the chest? Does your child feel drained out after climbing a flight of stairs? Do you know a child who always seems to run out of breath and cannot participate in school sports tournaments or play outside for a long time? The child could be suffering from asthma, which is a serious breathing problem. Most children are affected by asthma. Staying in a polluted city just makes the condition worse.

Asthma - Know the disease

Asthma is a condition that causes inflammation of the airways, known as trachea and bronchioles.
The muscles around the airways constrict and prevent the smooth flow of air.
The lining of the bronchioles swell and block the airways.
Asthma is mostly triggered by an allergic reaction.
There is a difficulty in breathing out. Exhalation of air is often accompanied by a wheezing, that is, a whistling sound.
There is a constant shortness of breath, feeling out of breath and gasping for air.
There is an uncomfortable tightness in the chest, the feeling of not breathing in enough air.
Coughing bouts in the middle of the night, that leave the child feeling exhausted and completely out of breath.
Causes of Asthma 

Asthma is mostly triggered by asthma allergens. These allergens are mostly pollens and animal fur.

Exposure to pollution, such as dust and smoke
Heredity
Obesity
History of heartburn, GERD and acid reflux
Inflammation of sinus and airways
History of bronchial disorders and pneumonia
Viral infections
Chronic rhinitis
Low immunity causing constant cold and blockage of nose
Treatments of asthma

A nebulizer that turns asthma medicine into a mist can then be inhaled easily
An inhaler can be used to take in inhaled steroids into the lungs or a bronchodilutor
Try and avoid asthma triggers and allergens as much as possible
Avoid physical stress and heat
Get sufficient rest of about 7-8 hours every day

Troubled Breathing - Can It Be a Sign of Asthma?

There are many food items which would become stale after a few hours, but there are certain foods which may last forever without the need to can them or freeze or dehydrate. If an individual is new to the field of food storage, these staples can be an excellent way to begin.

White rice: There are numerous researchers who have found that polished or white rice keeps up their nutrient content and flavour for almost 30 years if it can be stored in oxygen-free containers in temperatures that range below 40 degrees Fahrenheit. Brown rice, on the other hand, doesn t last more than six months owing to the availability of natural oils in the bran layer.
Honey: Honey is preferably the only food that would last forever due to the perfect chemistry and the handiwork of the bees. The nectar extracted from the flower gets mixed with the enzymes present in the bees  bodies which alter the composition of the nectar. The nectar is further broken down into simple sugars and is accumulated in the honeycombs. The processing, as well as sealing of the honey, is primarily responsible for the incredible shelf life.
Salt: Since sodium chloride is a mineral which is taken from the natural components of the earth, its shelf-life should come as a natural consequence. It is used for centuries as a means of preserving other food products as it can extract out all the moisture. But this doesn t indicate that the table salt would last forever. Experts say that the addition of the iodine to the table salt reduces the shelf life of the salt which means that if the label says that it is an iodized salt, it will not last over five years.
Soy sauce: When left unopened, a container filled with soya sauce would last for a significantly long period. But it is also dependent on the type of soy sauce and the additives used. Even if the soy sauce has been opened, this salty condiment will last for many years if stored in the refrigerator.
Sugar: Quite similar to many items, the storage process of the sugar determines whether the sugar is going to last for long or not. Granulated and powdered sugar must be kept under an airtight condition to steer clear of moisture. Although retailers are needed to provide the manufacturing dates of the sugar, manufacturers say that the sugar remains edible even if it has hardened and become brown.
Pure maple syrup: Pure maple syrup, as well as commercial sugars such as granular sugars and honey, has an irresistible life owing to its shield against any kinds of microbial growth. Unopened maple syrup shall last forever, and in case there is the formation of mould, boiling it to a certain degree and skimming the surface and ultimately pouring it to a clean and air-tight container would eliminate all the problems.
Clarified butter: This kind of butter is boiled unless the total moisture is extracted which is the reason that it doesn t go bad. As long as the clarified butter or ghee is stored in sealed container under cool temperature, it would last for about 100 years.

7 Foods That Never Expire!

What is Allergic Asthma?

Allergic asthma is the condition in which the symptoms of an asthmatic attack appear after exposure to certain allergens. 90% of the cases of asthma in children are allergy driven, while in adults, the percentage is said to be around 50%.

An allergy happens when an individual's immune system exhibits massive reaction or fights vigorously against substances like pollen, dust, animal dander or certain other minute particles which are actually not harmful to the body but are considered so by the immune system.

Symptomatic changes in cases of allergic asthma:

If the symptoms of an asthma attack occur only when you are subjected to these triggers or irritant particles, your case is allergy driven.

In such cases, the airway reacts aggressively to the entry of such allergens.

The airway muscles tighten up and inflammation is observed.

Breathing becomes painful and compromised, and mucus accumulation sets in very quickly.

Coughing is a common phenomenon, as the body tries to expel the mucus accumulated.

The allergens mentioned above are not the only triggering agents. Basically, anything that causes irritation could trigger an allergy and an asthmatic attack thereafter. Symptoms in the case of allergy driven asthma are more or less the same as seen in other asthmatic cases.

Confirming the cause of asthma as allergic or not:

The doctor would give you a much better clarification on whether you're asthma is allergy driven or not. There are pretty much two ways to decipher the same:

One is to administer a tiny amount of allergen to the skin and making a note of the reaction to that. Whether the reaction is a normal one or an aggressive one would tell if an individual has an allergy or not.

Specific IgE test may be done to confirm the cause, or to test the presence of an allergic reaction in the individual.

All your queries pertaining to allergic asthma and asthma, in general, are more than welcome.

What is Allergic Asthma?

We take the act of breathing for granted, but for many people this simple action can be quite difficult. Difficulty breathing is one of the characteristic symptoms of asthma. This is because of an inflamed, narrow airway. Asthma can be allergic, hereditary, emotional or occupational in nature and can significantly lower the quality of a person s life.

Homoeopathy is a holistic form of treatment that addresses not only the symptoms of a problem, but its root cause. This form of treatment takes into consideration the physical, mental and emotional state of a person. It has negligible side effects and hence can be prescribed to people of all ages. 

Some of the most frequently prescribed homeopathic remedies for asthma are:

Ipecac: This is used in cases where the patient suffers from sudden wheezing, dyspnoea, anxiety and feels a weight on his chest. In such cases, the asthma is aggravated by motion and a constant cough often causes gagging and vomiting.
Arsenicum: Arsenicum is beneficial in cases where the patient is elderly and asthmatic attacks are more frequent after midnight. These patients suffer from anxiety, restlessness, burning in the chest, dry dysponea and fear suffocation. Allergic asthma caused by humidity can also be treated by arsenicum.
Antim Tart: This is prescribed to patients who suffer from a rattling cough with little mucus expectoration. In many instances this cough is triggered by eating and can be relieved by lying on one side. This type of asthma also makes the patient feel drowsy and weak. Antim Tart is especially beneficial for young children and elderly people.
Nux Vomica: Asthma can also be triggered by gastric troubles. In such instances breathing is more difficult in the morning and is marked by a dry cough and a feeling of fullness in the stomach. Nux Vomica is an excellent remedy for such types of asthma. These asthmatic cases also worsen in winters and may be accompanied by a headache or stomach ache.
Carbo veg: This homoeopathic remedy is prescribed in cases where the patient s face turns blue at the time of an asthmatic attack. These patients also suffer from stomach troubles and a cough accompanied by itchiness in the larynx. Along with this, they tend to feel cold, especially in their hands and feet.
Though homoeopathy has negligible side effects, it should not be used to self medicate. Homeopathic medicine should be prescribed only after the doctor has a thorough physical and emotional understanding of the patient.

Asthma - 5 Homeopathic Remedies to Help You Treat it

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