THE AIR WE BREATHE •Molecules in the air include primarily nitrogen and oxygen as well as water, carbon dioxide, ozone, and many other compounds in trace amounts - some of these are naturally occurring while others the result of human activity. •In addition to gases, the atmosphere contains extras such as smoke, dust, acid droplets, and pollen. •The composition of the atmosphere changes constantly and depends on the season, weather, time of day etc. WHAT CAUSES AIR POLLUTION ? Most of the air pollution results from the burning of fossil fuels, such as coal, oil, natural gas, and petrol/ diesel to produce electricity and power our vehicles. Carbon dioxide (CO2) is a good indicator of how much fossil fuel is burned and how much of other pollutants are emitted as a result. AIR POLLUTANTS are of three types •Gases •Particulate Matter Bacteria and Viruses COMMON AIR POLLUTANTS ARE •Carbon Monoxide •Ground Level Ozone •Lead •Nitrogen Dioxide •Particulate Ma...
Nasal Polypectomy Nasal polypectomy is a surgical procedure used to remove nasal polyps, which are noncancerous growths that can develop in the lining of the nose or sinuses. Nasal polyps can cause a range of symptoms, including nasal congestion, runny nose, facial pain, and loss of smell. In severe cases, they can also cause difficulty in breathing and sleep apnoea. Before undergoing a nasal polypectomy, it is important for patients to understand the procedure and what to expect during and after the surgery. This guide will provide an overview of nasal polypectomy and the steps involved in the procedure. Preparation for Surgery: Before the surgery, patients will meet with their ENT doctor to discuss their medical history, current medications, and any allergies they may have. They may also undergo imaging tests, such as a CT scan or MRI, to provide a detailed view of the nasal cavity and sinuses. A nasal endoscopy is usually performed as an OPD procedure. On the day of t...
There has been tremendous controversy recently about the "Asymptomatic Patient" - who are they and can they spread Corona virus infection? To understand the terminology in its context, let us look at three different but closely related situations - 1. The Mildly Symptomatic Patient - This patient of confirmed Covid-19 has mild symptoms like fever, occasional cough or mild breathlessness. They gradually recover without any specialized treatment. 2. The Pre-Symptomatic Patient - These patients have been recently infected, have currently no symptoms, but will gradually develop them. They can transmit infection during this incubation period. This is usually about a week from contracting the infection, but could be up to two weeks. 3. The Asymptomatic Patient - This is a confirmed case of Covid-19 who never develops any symptom. What makes this disease pursue a relentless and fatal path in some patients and leaves many practically untouched is still ...
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