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?

How to diagnose asthma in children

Asthma in children under the age of 5 is a matter of concern. It is not a rare disease and early diagnosis is important. Common signs of asthma in children are:

1. Recurring bronchitis
2. Wheezing
3. Discomfort in the chest
4. Coughing
5. Trouble breathing

While some children have persistent yet mild symptoms, some children have severe attacks at times. Seasonal allergies and smoke make the symptoms worse.

What to notice?
While feeding an infant, if you notice that your child is facing shortness of breath, it might be a symptom of asthma. In a toddler, if your notice a decreased desire to run and play, or easy fatigue, then this could be a symptom of asthma. Asthma attacks for many children under the age of 5 are worsened when they catch cold or have any other respiratory infections. All these, if noticed should not be ignored and your child's pediatrician should be consulted.

The above mentioned symptoms were mild. Some children have it worse and the attacks can be life-threatening, needing immediate treatment. If your child is under the age of 5 and you see them doing one of the following, contact emergency services immediately:

1. Trouble in speaking because they have restricted breathing
2. When they are breathing in, the effort is so much that the abdomen is getting sucked in
3. Gasping for air.

Diagnosing asthma in a child can be tricky as symptoms like coughing, wheezing, etc can be for other conditions also. Once a child is a little older and if the symptoms persist, breathing and lung function tests are taken to gauge the situation. 

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How To Diagnose Asthma In Children, Before It Attacks?

Seasonal allergies are usually characterized by sneezing, coughing and other allergic reactions. Also known as hay fever and allergic rhinitis, the condition tends to appear only during certain seasons of the year. The disease is triggered by changes in the weather and exposure to certain allergens like dust. The allergens cause the body to release histamine into the blood thus, resulting in symptoms of allergy.

The symptoms of seasonal allergy are:

    Coughing
    Sneezing
    Congestion in the nose
    You may experience a blocked and runny nose
    You may have an itchy nose

Ayurveda is a holistic method of treatment that focuses on improving your overall well-being. The various Ayurvedic remedies for treating seasonal allergies are:

    Restrict Dairy Intake: You need to cut dairy out of your diet as dairy products have all the characteristics of a cold food. They tend to create imbalance in the  kapha  dosha in the body, thus leading to various diseases.
    Ayurvedic Detox: Consider doing an Ayurvedic detoxification to cleanse the body of the various toxins. It helps in smoothing out the  dosha  balance and hence improves your overall well-being.
    Nasya: This process requires you to put drops of medicated oils inside your nostrils. This lubricates the nasal cavity and prevents the allergens from causing an allergic reaction in the body.
    Eat More Warm Foods: Try to eat warm and cooked foods as much as possible. Eating frozen foods is not recommended as the nutrients from the food may not be absorbed properly owing to a weak digestive system which may be the result of a bout of severe seasonal allergies. Include foods such as soups and porridge and you have a perfect dish to gorge on.
    Exercise on a Regular Basis: Make sure you exercise on a regular basis to improve your fitness levels and also to keep a check on your weight. Certain  yoga  poses such as the downward dog and the cobra help to improve the digestive process. Add cardio workouts such as running and swimming to improve the health of the lungs.
    Add Spices: Add spices to your cooking such as turmeric or garlic as they help in rejuvenating the respiratory system.

Seasonal Allergies - 6 Natural Remedies That Help you Manage them

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?

The number of allergens are many and knowing what triggers your allergies can get complicated. The common triggers that are known to trigger allergic rhinitis are:

Moulds
Fungi
Pollen, the most common cause for allergies
Dust mites, and the faeces of dust mites that can cause severe allergic reactions
Cockroaches
Animal dander, which includes cat hair, dog fur, and may also include little flakes of skin
Avoiding the above mentioned triggers is more of a general guideline for the management of allergies. The lifestyle changes that you make to manage allergies:

Keep yourself hydrated at all times. Drink about eight to ten glasses of water every day. This will allow the mucous to be expelled with ease, if you experience any nose block.
During seasons like spring, when the amount of pollen in the air is at its maximum, limit your exposure. Try to stay indoors to avoid exposure to pollen or dust in the air.
Make it a point to take a shower before going to sleep as the residues of pollen and dust stuck to your skin are likely to make your symptoms worse.
Use fresh bedding and clothes every day. This will help to reduce your exposure to allergens.
Remove your carpets. Carpets are home to dust mites and pollen grains which become difficult to remove even with vacuum cleaners. Remove the carpets during the allergy season, and replace with hard flooring.
Keep windows and doors shut to avoid dust and pollen grains from entering the house and possibly causing allergies.
Avoid staying around pets. It that is not possible, then wash them at least once a week to reduce allergies.
Prevent inhaling cigarette smoke or smoking cigarettes. The smoke can be very harmful and can increase the risk of asthma in kids.
Avoid outdoor trips during seasons when the pollen count is high.

Allergies - Lifestyle Changes That Can Help Manage it!

8 Ways to know that your immunity is low

Are you falling sick very frequently or get tired too soon? It could be most likely because your immunity is very low and your body has to fight harder to function properly. There are certain indicators which tell you that your immunity is low, and you must take quick action to avoid any major problem your body may encounter eventually.

Here are the telling pointers for lowered immunity.

1. Dehydration - Our body is made of 70% water. This goes to show how important water is, for it to function properly. Fluids help get rid of germs and other toxins from the body. It is very important to keep ourselves hydrated. At times, our body loses water, however we do not realize immediately. A good way to find this out is to keep a check on the colour of our urine. Ideally it should be transparent.

2. You are always unwell - It is a no brainer This is the clearest possible indicator that your immunity needs a boost. If every time there is a change in weather or you are around someone who has the flu/is sneezing, you get sick too then it is a clear indication that your body is unable to fight the germs.

3. Drinking water seems impure - Most parts of India doesn’t get pure drinking water and this happens to be a matter of grave concern. This doesn’t apply to only the poor and homeless; a lot of our population resides in localities where pure drinking water in not available. Therefore it is important to make sure you purify your drinking water. Always check your water purifier. In situations where one doesn’t have access to purifier, ensure that you boil and strain your drinking water.

4. You are forever stressed - Your work, family, personal and social obligations might be pulling you down and you are forever stressed or worried about something or the other. If you fall sick when already stressed, you body cannot fight the germs as it could if you are stress free. Chronic stress leads to your immunity being low and you falling sick repeatedly.

5. Your sugar cravings going up - We are all well aware that having a weakness for sweets poses a threat to your oral health and waistline. However, if it leads to a craving and you end up consuming too much, every day, it can lower your immunity by weakening the white blood cells. If the white blood cells are weak, the body loses its ability to fight the germs.

6. Your nasal passage feels dry - This is comparatively rare, but does happen to many people. While a dripping nose is bothersome, what is worrisome is a dry nasal passage. Germs linger in dry passages and one can have cold & flu frequently. Keeping a humidifier in the room might come handy.

7. You are overweight - Being overweight is never a good news. It leads to a multitude of diseases and also weakens your immunity. Once your body mass index is way above the allowed level, your body gets stuck in a vicious circle. An overweight body gives ways to health problems, which again affect your weight for instance, when hormonal imbalance happens.

8. Lack of energy - You are always tired. All you want to do is sleep, even after waking up from a good, long sleep. This is a clear indicator of low immunity. You need to regulate your diet & exercise, apart from ensuring you sleep a good eight hours in the night, instead of 8-10 hours throughout the day.




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8 Reasons Your Immunity Is Lower Than It Should Be

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