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, 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

 Asthma  is a serious expiratory disorder, whereby, the patient faces difficulty in breathing or dyspnoea due to various factors such as allergies, bronchial infection, anxiety or stress and occupational hazards. In all the cases, it leads to excessive bronchial spasm and mucus accumulation, plugging the bronchial which leads to paroxysms and the patient starts panting heavily. But it is completely chronic without any complications. 

Although allopathic measures such as inhalers and steroids can temporarily help to control the situation, yet, homeopathy has proved even more useful for asthma as the treatment is completely natural and does not carry the uncertainty of side effects like the steroids. It not only helps to reduce the intensity of spasms, but also, tries to cure the actual cause of asthma itself. Consequently, after a complete and proper treatment of asthma with homeopathy for a couple of months, it has been found, that the patients are living a happy life without any sign of the disease. Given below are the various homeopathic medicines used for curing asthma:

Arsenic Album   This medicine comes into rescue when the patient is extremely restless, unable to sit or stand comfortably, feels extremely thirsty but is unable to drink too much water, feels suffocated with pain in upper-right chest. Arsenic Album is said to have provided great relief to such patients.

Ipecac   When a patient suffers from vomiting and nausea during these asthmatic attacks, this medicine can prove very useful, especially in children and adults who are a little fat.

Antim Tart   One of the effective medicines for asthma accompanied by rattling cough caused due to eating making the patient feel very weak and sleepy. This medicine is generally suitable for old people and children.

Nux Vomica   This medicine helps patients who suffer from gastric problems due to asthma causing headache and epigastric pain in the stomach region.

Carbo Veg   This medicine helps in cases where asthmatic attacks make the patient s face blue and also cause coldness of hands and feet.

Although above medicines are very effective, yet, they should always be taken strictly under doctor s guidance.

Homeopathy Treatment For Asthma

Asthma is a condition that severely affects the lungs. The airways become narrow and the lungs become inflamed. Its characteristic features include bronchospasm, reversible airflow obstruction and variable and recurring symptoms such as coughing, wheezing, shortness of breath and chest tightness. This might be caused up to 2 to 3 times a day.
Causes
Causes include:
1. Daily use of paracetamol
2. Vaccines
3. Daily use of antibiotics
4. Caesarean sections
5. Asthma in family

Asthma is usually triggered by:
1. Tobacco smoke
2. Exercise
3. Polluted or poor air
4. Cold air
5. Emotional stress
6. Allergies

Homeopathic treatment
Asthma should be preferably treated using homeopathy. It is safe for most age groups. Asthma is a chronic problem that is best treated by a qualified homeopath. While few cures are found in numerous home use packs since they can treat a number of problems, the effective treatment of asthma usually needs potencies and changes of cures more than the extent of a prescriber and a home kit. For best results, the monitoring of a qualified homeopath should be sought. The homeopathic cures required for asthma change according to the signs of the sufferer. Some of them are listed below:

1. Arsenicum album (ars.): symptoms requiring the use of this medication include wheezing with dry cough and asthma caused due to cold air. Upon application, the person will be anxious and restless and the condition worsens after midnight. Sometimes, it might result in exhaustion. There is a chilling sensation and they will crave for warmth. Patients required ars. Will be critical, anxious and afraid of being alone.

2. Kali bichromicum (kali-bi.): symptoms that require kali-bi include asthma with stringy and sticky mucus. The patients feel chilly and after a while they get sick. The respiratory tract often is infected with mucous membrane infections. Ulcers are an additional infection.

3. Antimoniumtartaricum (ant-t.): uncomfortable breathing and wet cough with mucus require this medication. It solves many issues that accompany difficult breathing. In severe cases, heart failure is possible.

4. Grindelia (grin.): key symptoms are dry cough and possibility of wheezing. It may be accompanied by rattling respiration, chronic bronchitis and suffocation during sleep.

5. Phosphorus (phos.): upper respiratory tract infections cause asthma that ends in the chest. This causes coughing and wheezing.

Other homeopathic medicines for treating asthma are nux vomica (nux-v.) and pulsatilla pratensis (puls.).

Homeopathic Treatment for Asthma

Asthma is the most common chronic condition for women in pregnancy. While Asthma control can affect pregnancy, pregnancy too can affect Asthma. Yet while pregnancy does not beget Asthma, neither does it abate.

Nevertheless, Asthma management during pregnancy is very important. Improper Asthma management, especially in difficult Asthma, during pregnancy may imperil both the mother and the child.

Along with taking the right medications, Asthma patients also need to avoid exposure to Asthma triggers.

Avoiding Asthma Triggers

Asthma triggers may be different for different people. In general, one or a few of the following act as Asthma triggers:

Allergens like pollen, dust mite etc.

Smoking

Certain exercises

Certain occupational exposure

Pollution

Certain drugs like  blockers, aspirin etc.

Alcohol, dairy products, orange juice, peanuts etc.

Additives like tartrazine, monosodium glutamate etc.

Certain medical conditions like gastric reflux, rhinitis etc.

Apart from avoiding these Asthma triggers, she would also need to follow the instructions of her gynecologists. She should always be concerned that if the treatment is not working or if she is experiencing any trouble, she must consult with the gynecologists. She can also do some exercises to stay active and healthy.

However, she should always consult a doctor before doing any exercise, especially for those who have experienced Asthma attacks in the past.

Effects of Asthma on Pregnancy

Poor Asthma management and difficult Asthma before pregnancy are associated with increased risk of hypertension during pregnancy, which can beget Preeclampsia. Studies have also shown that women with Asthma tend to undergo Caesarean sections more than others. It has also been observed that Asthma may restrict the growth of the fetus leading to low birth weight.

However, this is more due to poor Asthma control such as persistent breathing difficulty or poor lung function etc., than Asthma per se.

Effects of Pregnancy on Asthma

Certain physiological factors during pregnancy do affect Asthma. In difficult Asthma, control usually deteriorates between 24 and 36 weeks of pregnancy, mainly due to poor adherence to corticosteroids. This is why pregnant women with Asthma should be monitored closely irrespective of the severity of Asthma.

Breathlessness in Pregnancy

Breathlessness during pregnancy is common. In fact, even pregnant women with no Asthma symptoms may feel breathless at times. It reflects some normal physiological and anatomical changes during pregnancy. Even anxiety may precipitate breathlessness. This indicates that pregnant women with difficult Asthma may feel breathless, not just because of Asthma, but also because of normal changes during this period. However, new incidents of Asthma can also be a cause of breathlessness.

Respiratory Distress in Pregnant Women

Respiratory distress in pregnant women may not always be due to asthma. There may be a whole host of reasons that include Anxiety, Hyperventilation, chest infection, dysfunctional breathing, pneumonia, interstitial lung disease, thromboembolic disease, amniotic fluid embolism, pneumothorax, ischemic heart disease, arrhythmias, cardiomyopathy and a variety of endocrine, hematological and renal disorders.

Preventing Respiratory Distress During Pregnancy

Apart from avoiding Asthma triggers, pregnant women with Asthma or difficult Asthma need to strictly adhere to Asthma control. This indicates that they need to adhere to their corticosteroids religiously. However, before that, they also need to make sure that the corticosteroid is safe to be taken during pregnancy.

Asthma may or may not affect pregnancy. However, it is always a great idea to go for Asthma management. This will help women deal with complications related to Asthma during pregnancy.

Apart from that, always consult a doctor before going for any medication related to Asthma control, or actual treatment of Asthma.

Difficult Asthma - All You Should Know!

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

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