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.

Filter by
Sorted by
Tagged with
0
votes
0answers
47 views

Cardiopulmonary capacity assessment

Is it possible to determine someone's cardiopulmonary capacity from organ/tissue/blood samples alone? No other clues allowed. Think about a non cooperative patient, who can lie in an anamnesis, or ...
1
vote
0answers
18 views

Why are inhaled corticosteroids not used in the treatment of pneumonia?

Common sense made me think of the need for inflammation reduction in case of pneumonia and the anti-inflammatory characteristics of inhaled corticosteroids. I Googled and found a study1 from 2017 that ...
0
votes
1answer
91 views

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, ...
3
votes
0answers
33 views

Is black spotting on the lungs a common benign variance, or a sign of pathology?

I recently found this article which shows an externally-healed lung donation before transplant. The left image is supposedly the lung pre-treatment, and right is post. In both of these images, black ...
0
votes
0answers
29 views

Fluid in lungs from pressure during bowel movement? [closed]

One of my relatives is admitted in the hospital because he got infected with COVID. And yesterday, his lungs had fluid in them because he exerted pressure during defecation. How is this possible? ...
0
votes
0answers
10 views

What is the actual function of PGE2 on bronchial smooth muscles?

At first ,i have understood that PGE2 function on bronchial smooth muscle is relaxation of smooth muscles and it is even used as inhalant in case of bronchoconstriction (eg.asthma) Source:Katzung-...
1
vote
0answers
31 views

Can Weightlessness help cleaning lungs from Microorganism in Covid-19 patients? [closed]

We know that cleaning lungs from Microorganisms in Covid-19 patients is hard. But In Weightlessness materials easily move around. So could Artificial Weightlessness help doctors for safer and more ...
0
votes
0answers
27 views

How much time can a human withstand without breathing? (after expelling all the air from the lungs)

How much time (how many seconds) can a human withstand without breathing? (after expelling all the air from the lungs)? Any paper? Thanks!
0
votes
1answer
57 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 ...
4
votes
1answer
80 views

Avoiding acute mountain sickness, high altitude pulmonary & cerebral edema

I have to fly to a town which is at high altitude. What precautions/drugs can I take to avoid acute mountain sickness or more life threatening accumulation of fluid in brain or lungs (high altitude ...
1
vote
0answers
7 views

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 ...
3
votes
0answers
83 views

40 y/o woman admitted with ARDS but normal values

Second year medical student asking: A 40 year old woman is admitted to the ICU with acute respiratory distress syndrome due to a life threatening case of pneumonia. Her respiratory values are as ...
1
vote
1answer
64 views

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?
3
votes
1answer
8k views

What kind of doctor or physician do I need to consult for continuous coughing?

I have a dry cough. It's persisting from last few months ( more than 3 months). There is no chest pain. Slight cold environment causes me urge to cough, irritation happens inside the chest. I have ...
0
votes
1answer
46 views

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 ...
3
votes
1answer
53 views

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 ...
2
votes
1answer
150 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 ...
2
votes
1answer
100 views

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 ...
18
votes
2answers
28k views

Is "smokers lungs" a lie?

We've probably all seen photos of smokers' lungs compared to non-smokers lungs. For example: These images are commonly used in anti-smoking materials, at least in the US, and I've never had cause to ...
1
vote
0answers
24 views

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 ...
0
votes
2answers
188 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 ...
1
vote
2answers
126 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 ...
2
votes
1answer
69 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 ...
1
vote
0answers
26 views

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/...
1
vote
0answers
21 views

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 ...
1
vote
1answer
56 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 ...
2
votes
1answer
1k 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 =...
3
votes
0answers
26 views

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?
1
vote
0answers
30 views

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 ...
3
votes
0answers
39 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 ...
4
votes
2answers
155 views

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, ...
5
votes
0answers
68 views

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 ...
9
votes
3answers
6k views

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-...
1
vote
0answers
146 views

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 ...
3
votes
0answers
15 views

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 ...
2
votes
1answer
70 views

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 ...
5
votes
1answer
90 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 ...
1
vote
1answer
47 views

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 ...
3
votes
0answers
38 views

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 ...
8
votes
1answer
271 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 ...
3
votes
0answers
186 views

Is smoke from oil lamp dangerous [closed]

There was a power outage recently in my flat, so I decided to light up some older oil lamp I found. I didn't notice that as the wick was probably too large, the lamp was smoking whole night. When I ...
1
vote
0answers
25 views

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 ...
1
vote
1answer
104 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 ...
4
votes
2answers
109 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?
2
votes
1answer
511 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-...
2
votes
2answers
330 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 ...
10
votes
2answers
5k views

How long after quitting smoking to expel tar from lungs?

I quit smoking over a year ago, before that, i used to smoke up to a maximum of 9 cigarettes a day. However, up until now, I did not cough up tar, only clear sticky mucus comes out. I want to know ...
0
votes
2answers
74 views

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 ...
1
vote
0answers
54 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 ...
4
votes
1answer
775 views

Carbon Dioxide Poisoning in Everyday Situations

I am wondering whether slight CO2 poisoning (hypercapnia) can be induced by everyday bad behaviour. I am particularly interested in the consequences of The prolonged use of a surgical mask (a.k.a. ...