Questions tagged [lungs]

Questions pertaining to each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed.

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1answer
38 views

Why aren't lung machines / ECMO widely used for COVID-19?

I am not a doctor but I have read quite a bit on how COVID-19 affects the body. The ability of a critically afflicted patient to efficiently exchange oxygen drops off a cliff as the lungs fill with a ...
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Is inhaling oil smoke dangerous?

It is well-known that when cooking, you should never raise the temperature of oil above its smoke point, since many toxins are produced after that point. However, seasoning of an ironcast pan requires ...
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Unclear line: “PI*SZ, null and about other 30 rare or null phenotypes”

From Alpha-1 Antitrypsin Deficiency PIZ and PIS Gene Frequency Distribution Using on Maps of the World by an Inverse Distance Weighting (IDW) Multivariate Interpolation Method (2012): Alpha1-...
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Effects of Exposure to Periodic, Long-term PM2.5 Pollution

The EPA's AQI quantifies air pollution, sets out ranges of pollution, and associates health risks with each range. Quoting from PurpleAir: "101-150: Members of sensitive groups may experience ...
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1answer
142 views

Can COVID-19 be damaging lung without showing fever? [closed]

Given that a man of 39 years without underlying health condition, is having chest discomfort and tightness, which is more discomfort during evening and night before fall asleep. He don't have cold and ...
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How is nitrogen not exchanged in respiration? [closed]

Air is 78% of nitrogen. When we inhale air, we inhale large amounts of nitrogen when compared to oxygen. How is nitrogen not exchanged? How is it exhaled?
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86 views

Bike pump as a ventilator?

I've been trying to think of the simplest, pre-existing item that could be used as a ventilator to support coronavirus patients that require it. I have come across this useful specification regarding ...
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1answer
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Is open air spraying of disinfectant irritating the respiratory system and therefore increasing risk of infection such as COVID-19?

Recent articles and news items showed groups of people (mainly in Asia) spraying whole cities with disinfectant (as shown on a photo below). Apart from questions about the used substances, dose, ...
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Is or could lung lavage be used to treat or at least reduce the time required on a respirator for COVID19 patients?

Could bronchial washing (as used in pulmonary alveolar proteinosis and some forms of pneumonia) be used to treat or at least reduce the length of time a patient suffering from COVID-19 required ...
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60 views

How likely is it to develop pneumonia as a result of COVID-19?

The severity of n=44,672 confirmed COVID-19 cases in Mainland China as of February 11, 2020** as a result of the SARS-CoV-2 (previously 2019-nCoV) virus is as follows: 81% mild (assumed: no ...
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121 views

Why recovered patients develop lung disease due Covid-19?

In this link https://www.dw.com/en/covid-19-recovered-patients-have-partially-reduced-lung-function/a-52859671 we can see Now researchers in Hong Kong have said that recovered coronavirus patients ...
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What is it like for the patients to be lose 10%, 20%, 50% or lung capacity under fibrosis lung condition respectively?

What is it like for the patients to be lose 10%, 20%, 50% or more lung capacity under fibrosis lung condition permenently for each number respectively? Can you describe the potential impairment for ...
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Is it possible that inhaling copper vapor, in some form, can help in treating a bacterial or viral infection of the lung? [closed]

There are many studies showing the antimicrobial properties of copper. Based on these properties, is it possible that inhaling copper vapor, in some form, can help in treating a bacterial or viral ...
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Is it possible, and what would be required to modify a ventilator to support two patients concurrently?

An article from a pediatrician on NYT suggested this as a possibility, I'm keen to know if it could be done in an emergency/shortage situation. If so: What would the challenges be from a mechanical/...
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1answer
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Does oxygen supplementation in case of pneumonia cause effects other than possibly preventing hypoxemia?

I've been reading about oxygen supplementation and have a question about the effects of oxygen supplementation in case of pneumonia. Patients with aspiration pneumonitis or pneumonia may progress to ...
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Can bromhexine decrease severity of respiratory diseases and viral respiratory infections such as COVID-19?

According to this article https://www.vox.com/2020/3/3/21161724/coronavirus-symptoms-covid-19-sars-cough-fever one (less frequent) symptom of COVID-19 is thick mucus from coughs (sputum). Respiratory ...
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49 views

How many ECMO machines does China have?

Is there any data on how many ECMO machines in China? I know that there are about 260 machines in the united states but I have found no data about China on such matter. I want to compare the ...
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1answer
243 views

What is 'Rising of the lights' as a death?

In a reddit post showing the 'Causes of death of london in 1632' Theres a few causes that seem weird. But the one the caught my attention is 'Rising of the lights'. The best I've seen is that Lights =...
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Are there probiotics for upper respiratory tract tissue?

If the lungs can be subject to bacterial infection, why do there not exist beneficial probiotics that live in lung tissue to combat "bad" bacteria proliferation?
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What's the primary body entrance + surface of infection for catching the flu?

I realize there are multiple ways, but if you tallied up all the people who caught the flu or a cold last year, what would be the majority... Entrance for infection: Mouth Nose Eyes Ears Skin Bio ...
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35 views

Is sinus mucus inhalation a high risk of pneumonia?

I understand that inhalation of food or stomach contents has a very high risk of causing pneumonia. Is routine sinus mucus , not caused by a cold of other illness, likely to cause pneumonia if inhaled ...
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What is the cause of the vaping-related outbreak of lung injuries?

According to the CDC, there are reports of more than 1000 patients in the US with vaping-associated lung injuries, and 23 deaths have been confirmed. The median age of deceased patients is 49.5 years, ...
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Why and how is it possible for one’s lungs to burst from breath-holding against a moderate decompression?

You often hear that you should never, ever hold your breath when the ambient pressure around you is decreasing at a significant rate (for instance, during egress from a submarine ten meters down, or ...
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Why oligohydramnios leads to hypoplasia of lung?

What I found for the question is that due to - Oligohydramnios reduces the intrathoracic cavity size, thus disrupting fetal lung growth and leading to pulmonary hypoplasia. decreased fetal breathing ...
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1answer
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Inspiratory and Expiratory Muscle Training

I'm interested in the scientific evidence of inspiratory and expiratory muscle training. There are various breathing training devices: According to their description, they enhance "strength and ...
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1answer
88 views

What study materials can a layperson use to gain a deeper understanding of lung cancer?

I am an outsider to the medical sciences, yet now in desperate need of knowledge to help a family member with lung cancer navigate the difficult medical system in our country. I would like to develop ...
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Can tumor size (T) and presence of cancer in the lymph nodes (N) in patients with lung cancer be identified on the first visit?

I am a scientific researcher working on lung cancer. I am trying to develop a machine learning method able to process just few early detection features and then predict if a patient with lung cancer ...
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Does tidal volume have any significance in a pulmonary function test?

In a pulmonary function test (PFT) two important parameters are forced vital capacity (FVC), forced expiratory volume in one sec (FEV1). These are useful for diagnosing obstructive and restrictive ...
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202 views

What is the significance of 1 second in calculations of PFTs

During PFTs (Pulmonary Function Testing), we take FEV1 (Forced Expiratory Volume in 1 second) and the divide it by FVC (Forced Vital Capacity). What is so special about FEV in one second, as opposed ...
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1answer
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What type of edible mushrooms have been linked to curing Legionnaires Pneumonia? [closed]

I've heard turkey tail has been linked to treating cancer, and garden giant treats e coli. What can be used to treat Legionnaires Pneumonia?
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What could cause a stroke soon after a lung transplant? Is it even known?

Recently a youtuber died of a thrombotic stroke a week after a lung transplant operation. Skimming over abstracts on Pubmed, it appears that strokes and more generally thrombosis is a frequent ...
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When trapped in an air pocket does breathing slowly prolong the amount of time you have? [closed]

So there is roughly 21% oxygen in the air. When taking a "normal" breath you saturate your blood with oxygen and exhale air with roughly 16% oxygen. With that in mind, I am curious if changing your ...
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How far away from a highway should I live to avoid negative health effects?

Many articles on the internet claim that living near highways can be harmful to one's health. Here is an example: https://www.thestar.com/news/canada/2017/01/05/living-close-to-high-traffic-roads-...
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1answer
101 views

how to clean ex smokers lungs

I am ex smoker. I smoked for decade and quit smoking. here on [this link]http://hangover-cure.co.uk/smokers-and-ex-smokers/) I have found a solution for cleansing the lung. is it safe and a possibke ...
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101 views

By how much does former smoking reduce one's lifespan?

If someone in their late teens/early 20s smoked 20 cigarettes a day for 5-10 years, and then never smoked again, by approximately how much would that reduce their lifespan?
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1answer
364 views

Is it dangerous to inhale agar-agar jelly

I want to make hookah aroma made from agar-agar dissolved in vegetable glycerin, aromas and high quality flavored vodka, but from what I heard, agar-agar expands within the stomach and is as well heat-...
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52 views

Amount of Bleeding from Wounded Lungs

For a game, I need at least a vague estimate on how much the lungs will bleed. One person mentioned that a deer shot through both lungs with a hunting rifle would be stopped by the bleeding within 10 ...
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2answers
315 views

Is it possible for the lungs and heart to work independently of one another?

I understand that the lungs take in oxygen, pass it to the heart to send throughout the body, and receive CO2 from cellular respiration that the lungs then breathe out. (Oversimplified, I know, but ...
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Is the IQOS heat-not-burn cigarette safe?

I am researching the topic of electronic cigarettes and have recognized that Philip Morris has recently introduced in some markets the IQOS heat-not-burn cigarettes. What is their safety profile in ...
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Research paper on living in areas with fresh air after living for more than 20 years in polluted area and impact on health

Are there any reasearch paper which shows impact on health for the person which is moving from the city with high air pollution to the areas with more fresh air (like countryside)? Below are 2 main ...
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Is it possible to spread cough even if I'm not coughing?

I don't have a cough but sometimes when I go into a place a moment later a person starts to cough. Last time I met my friend that I didn't seen for a long time, having some conversation after a few ...
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Liquid in Lungs? [closed]

So, here I was, eating and drinking in the car because my family didn't have time to stop and eat (we're on vacation) and, anyways, while I was swallowing my strawberry hi-c, I felt this odd, tickly ...
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Have there been any tests of e-cigs vs cigarettes?

After some years of e-cigarette popularity, no labs have yet published side by side comparisons of cell cultures or mice exposed to 10 cigarettes per day, compared to 10 e-cigs. Many labs have ...
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30 views

Exercise-Induced Asthma Daily Medication Use Short and Long Term Effects?

I have Exercise-Induced Asthma. I only feel satisfied when I'm either exhausted or when my muscles won't push any further. In general I don't like medication, I've always at least tried to have my ...
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Why are lower respiratory infections so prevalent in undeveloped countries?

As you can see here, lower respiratory infections are a major cause of death in undeveloped and developing countries, especially in central Africa. What are the primary causes of lower respiratory ...
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113 views

Too much sitting as bad as smoking?

I have heard that when you sit very long times every day that it is as bad for your health as smoking cigarettes. Especially, it is bad for your metabolism and especially the lungs get into a bad ...
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506 views

Effective use of a mask for allergies, asthma and bronchitis?

I was diagnosed with adult onset asthma after a bout of bronchitis last year. On top of that, I have allergies to most environmentals and I live in a desert environment with dust in the air. So I am ...
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What's caused by the chemicals, and what's caused by the smoke

The great many downsides of smoking are certainly well-documented by now (to say the least), but something I've struggled to find an answer to is the following: When looking at health risks of ...
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1answer
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How to breath better when you live in a big city?

We know that big cities have bad effects on health, due to their poor quality of air. The main pollutants we find in the air are PM10, nitrogen dioxyde and ozone. These three pollutants hazardous to ...
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What are the effects of regularly passively smoking marijuana?

Does the regular passive smoking of marijuana have specific effects in addition to those of passive cigarette smoking?