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?

Chronic obstructive pulmonary disease or COPD is a group of progressive lung diseases. Emphysema and chronic bronchitis are the most common lung diseases. Emphysema gradually ruins the air sacs in your lungs, which are interfered with exhalation. The inflammation and swelling of airways in the lungs is called bronchitis, which further allows production of mucus, which leads to increased difficulty in breathing.

COPD is a case which makes it harder to breathe. The symptoms like coughing and shortness of breath are light at first. With passage of time, these symptoms worsen and make it increasingly difficult for the patient to breathe.

The patient may experience wheezing and feel heavy on the chest. Some patients suffering from COPD experience flare-ups of severe symptoms or exacerbations.
The main cause of COPD is cigarette smoking and therefore, people who are used to smoking for a longer time may suffer from this diesease. It is a disease that takes time to build up inside one s body. COPD can further cause heart problems and worsen respiratory diseases.

Severe symptoms of COPD include:

Occasional shortness of breath
Mild and reoccurring cough with mucus
Constant need to clear your throat
Noisy breathing
Frequent cold and cough
Loss of energy or feeling fatigued
Swelling of ankles, legs or feet
Sudden weight loss
Treatment of COPD
The treatment of COPD can ease its symptoms and avoid further complications. To treat COPD, one needs a skillful and experienced pulmonologist and respiratory therapist.

The medications which are preferred by the doctor are bronchodilators, which soothe the muscles of bronchial tubes, making it easier for the patient to breathe. This medicine is basically taken from inhalers. To reduce the inflammation, Glucocortico steroids are added.
Oxygen therapy is undertaken to provide oxygen to the patient through an oxygen mask or nasal prongs to ease the breathing process of the patient. A portable unit is advised, if the patient is cured at home.
Surgery is an option for severe COPD patients, which is undertaken if and only all other medications have already failed to control COPD, which can be the case in emphysema. Bullectomy is a kind of surgery in which the doctors eliminate the large bullae (air sacs) from the lungs. Volume reduction surgery is the last option for the doctor to cure a COPD patient. In this process, the damaged lung tissue is removed. The doctors go for a lung transplant in some rare cases of COPD.
The treatment for many diseases is a healthy and disciplined lifestyle. One should quit smoking and get the nutrition that their body needs. People should consult a dietician and get a healthy diet plan, and ask a doctor about the extent of exercise they should perform daily.

COPD - Can Oxygen Therapy Help Treat It?

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?

When man first started using tobacco, he probably did not know that it would grow to be an epidemic that could cause multiple health issues. Be it smoking or chewing, tobacco has severe negative effects on health. Take any of the current lifestyle diseases from diabetes to obesity, the common risk factor is tobacco abuse. In addition, depending on the form of tobacco used, specific organs are affected. For instance, chewing tobacco leads to oral cancer while smoking causes lung cancer.

The statistics around tobacco abuse are extremely startling and can be read below:

A total of about 90 trillion rupees are spent on various tobacco products.
About 1.4 trillion is spent on healthcare-related to conditions caused by tobacco abuse.
India has about 120 million tobacco users.
More than 7 million people die every year due to tobacco usage.
The Government has levied a GST of 28% on cigarettes, making them unaffordable, which is one of the ways to promote quitting.
For those who want to quit but are not able to, there is a quit-line setup, which is toll-free, 1800-11-2356 and is accessible from 8 a.m. to 8 p.m.
Tobacco is a menace in all the strata of society. The lower economic classes are adversely affected both due to lack of knowledge and healthcare facilities. Therefore, the government uses the World No Tobacco Day (WNTD) that is observed by all members of the World Health Organization as an opportunity to drive this awareness.

This is celebrated on May 31st every year. Some measures that are taken to promote 'say no to tobacco' campaign are listed below.

In 1975, the Cigarettes (Regulation of Production, Supply, and Distribution) Act was introduced, which made it mandatory for cigarette packs to have a warning stating  Smoking Kills  or  Smoking is injurious to health. 
Marketing campaigns are shown in the movie theatres at the beginning of movies which depict the hazards of tobacco
Smoking is banned in most public areas, and warnings are on display.
Children below 18 are not sold tobacco products. If in doubt, the seller can ask for age identification.
Schools and colleges do not have tobacco selling within 100 meters of the campus.
The price increase ensures that not everybody has easy access to cigarettes.
Celebrities promote quitting tobacco and smoking by talking about their personal stories.
How can a healthcare professional help you?

A healthcare professional plays a vital role in a smokers life, as it the healthcare professional that can increase the odds of quitting with guidance, medication, and support. 

What should a healthcare professional do?

Identify people who smoke 
Motivate them to quit or think about quitting
Refer a person who smokes for treatment and support
Support ongoing abstinence
What is the right smoking cessation strategy?

Ask: Every smoker to visit a healthcare professional
Advice: Urge the smoker to leave smoking
Assess: Assess whether the person is willing to quit in 30 days
Assist: Plan and help Rx Quit
Arrange: Arrange a follow-up through phone or SMS or in-person
What is that people who smoke need help with?

First and  the foremost challenge are the withdrawal symptoms 
Urge to smoke and borderline depression with a possibility of relapse
People who have high pre-abstinence nicotine intake
How to get over the initial withdrawal discomfort?

Behavioural support is of proven efficacy
Can be delivered in different formats
Face-to-face
Telephone
Internet
Nicotine replacement therapy and nortriptyline are of proven efficacy
Facts On Nicotine Replacement Therapy (NRT)

There are no real contradictions related to NRT
No drug interactions 
Side effects, if there are any are localized e.g.
Taste of oral products
Hiccups with the mouth spray 
Skin irritation with patch 
Treatment for quitting Nicotine  - Medications: Medicines which are useful adjuncts in the determined but unsuccessful quitters are Varenicline and Bupropion. 

Though smoking out in the open has reduced, there are miles to cover when it comes to eradication of tobacco. 

World No Tobacco Day - Making An Effort To Control Tobacco Usage!

The festival of Diwali is greeted with great pomp and splendour and along with the regular festivities, the pollution levels in the air also rise due to the ritual of bursting fire crackers. In an analysis, the rise of harmful pollutants such as sulphur dioxide and nitrogen dioxide seemed to reveal a disturbing outcome.

The rise in pollution during Diwali affects you in the following ways:

The PM (particulate matter which is smaller than 2.5mm) enters your lungs and bloodstream and has several health impacts including chronic respiratory symptoms such as painful breathing and shortness of breath which might cause premature death.
High sulphur dioxide levels in the air during Diwali also lead to inflammation of air passages and causes complications in respiration.
A compound called  strontium  found in the atmosphere multiplies by 120 times during the festival and causes bone damage and blood clotting ailments.
Firecrackers contain heavy metals which are toxic to the human body and the amount of magnesium in the air goes up by 22x, which poses a significant threat to all forms of life.
The noise pollution also rises during the festival and in extreme cases, can permanently damage one s hearing.
However, there are a few measures you can undertake to steer clear of the excessive pollutants present in the air:

Limit the amount of time you spend outdoors even while exercising. This is because the air remains contaminated, days after all the festivities get over and the pollutants take a very long time to dissipate.
Even on the road, drive with the windows of your car rolled up to avoid intake of adulterated air and use a face mask if you are a two-wheeler rider.
Plant a lot of green plants inside your house as they purify the air you are breathing and ensure a supply of fresh oxygen.
Install an air purifier in the room to make sure you breathe in fresh, uncontaminated oxygen when you sleep. The air purifier will also help in lessening your respiratory complications.
Also, in case you notice any respiratory or breathing problem, it is advisable that you consult a pulmonologist, to rule out serious health issues. 

Diwali - How the Rise in Pollution Level Affects Your Health?

Upper respiratory infection (URI) is a condition, which involves illness, mainly caused by critical infection in the upper respiratory tract. This region includes the pharynx, larynx, nose and sinus. This infection causes diseases, such as tonsillitis (tonsils get inflamed), pharyngitis (causes sore throat) sinusitis (nasal passage becomes inflamed), laryngitis (voice box in your throat gets inflamed) and common cold.

Causes of upper respiratory infection (URI):
1. Both virus and bacteria cause upper respiratory infection (URI). The most common form of virus causing this infection is known as 'rhinovirus.'

2. The immune system of young adults and children are often very vulnerable. Hence, they are more likely to develop upper respiratory tract infection.

3. URI is also contagious and airborne in nature. So if a person comes in contact with an infected person suffering from URI, he/she is likely to develop this infection.

4. Not washing hands before meals can also cause upper respiratory infection because the virus can be transferred easily to the mouth and can travel into your system.

5. If you have any lung problem or heart disease, you are more likely to be susceptible to upper respiratory infection.

6. Those who already have inflamed tonsils can trigger tonsillitis by drinking any cold or spicy beverage like ice-creams or cold milkshakes.

7. Exposure to some flu or cold can cause pharyngitis. It can also be caused by second hand smoking.

8. Birth defects or structural defects in the nasal cavity or nasal polyps can cause sinusitis. Sometimes the inside part of the nose may get swollen due to common cold and block your ducts. This is a common cause for sinusitis.

Symptoms of acute upper respiratory infection:
1. Congestion in the lungs or nasal area.
2. Whooping cough
3. Running nose due to common cold.
4. Feelings of fatigue and lethargy throughout the day.
5. Your body will start aching without engaging in any physical exercise.
6. You can also lose consciousness in severe respiratory tract infections.
7. Difficulty in breathing.
8. Oxygen levels in blood drop down drastically.

Sometimes in worse cases, acute upper respiratory tract infection (URI) can also cause respiratory failure, respiratory arrest and congestive heart failure. Therefore, it is necessary to book an appointment with a doctor as soon as you start experiencing the above symptoms.

Acute Upper Respiratory Infection: Causes and Symptoms

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