Questions tagged [respiratory-system]

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Why is the flu more deadly to children than COVID-19?

Or better framed: Why are children not developing as severe reactions from COVID when they tend to fare much worse from seasonal flu? Is the answer something along the lines of: Those that don't die ...
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What could cause the loss of dyspnea sensation in this historical account of drowning?

I'll start by invoking a century-old account of drowning from dr James Lowson. Many stories of people rescued from drowning follow a similar pattern. After what appeared to be ten or fifteen seconds, ...
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Is city air pollution causes allergy?

Is there any evidence (study) which shows correlation with city air to allergy (to anything) or any other breath health problems? If yes is this correlation different if someone lives in big city ...
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Do oxygen and carbon dioxide move with Brownian motion? And, if so, do they get trapped by N95 masks?

Do oxygen and carbon dioxide move with brownian motion? And, if so, do they get trapped by N95 masks? Health professionals are experts agree: we should be wearing masks all day when in public during ...
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Why does the WHO's definition of respiratory droplets encompass such small diameters?

I frequently hear the World Health Organization (WHO) identify diameters of 5-10 μm as the size cutoff between "respiratory dropletes" and "droplet nuclei". For example, in a ...
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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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Does being outdoors but in close proximity to someone make a difference in Covid-19 transmission?

In a recent news article I've read that Outdoor haircuts were allowed in California from Tuesday, under new rules announced by the mayor, but indoor salons remain shut. Is this kind of rule/...
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Does COVID 19 hospitalization really helps? or not at all? [closed]

So I wanted to ask, given that most governments imposed quarantine in order to reduce risk of infection and/or not to overwhelm hospitals capacity, I wanted to know if it really makes a difference in ...
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Are (transparent) face shields without masks/respirators reasonably effective at preventing respiratory illness transmission?

You can see "splash guards" used by (almost) everyone in this video of a German tracing center, but (almost) nobody wears masks there. (Well, one spokesperson did wear mask and no shield.) So are ...
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Why is the immune response to RSV so short lived (and what else makes a vaccine for RSV difficult)?

From a Bio SE answer that doesn't delve into details on this (because it was a broad question on all "colds") one can't help but notice that RSV has the shortest antibody persistence listed in that ...
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1 vote
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Is there a term for this CPR technique that avoids direct respiration?

When I was performing NBC training (now called CBRN) in the military there was a technique used for when a person needed CPR and you were both wearing a gas mask (or the person was missing a nose 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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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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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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What's the evidence for "flattening the curve" by social distancing measures in the context of contagious respiratory diseases?

This is more of Skeptics-style question, but since I only know of people on Stack Exchange challenging this (so it would not be a "notable claim" for Skeptics)... I'm asking here. For ...
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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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Would "working out" with a respiratory muscle training device improve survivability of ARDS in patients without access to a ventilator?

"Acute Respiratory Distress Syndrome" (ARDS) is characterized by a rapid onset of widespread inflammation of the lungs. The causes are many, and one such cause might become prominent in the near ...
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What is the difference between Rhinitis, nasal congestion and runny nose?

Rhinitis, nasal congestion and runny nose → from prior reading on these terms I recognize somewhat inconsistency in regards to how people define them or use them in various articles. I personally ...
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Obstructive sleep apnea (OSA) - what level of respiratory dysregulation is involved and are respiratory stimulants relevant?

There are some people who when sleeping seem to power through obstructions to their breathing by breathing strongly such that they snore at a very loud volume. For people with obstructive sleep apnea ...
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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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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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4 votes
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What are clinically advised methods to improve nocturnal respiration other than CPAP?

Based on conventional medicine, what advice should a physician give a patient who experiences breathing difficulty during sleep that is not determined to require a CPAP machine and for which the root ...
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1 vote
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What is the difference between these two respiratory terms?

The difference between lung recoil pressure (Pel) vs Intrapleural pressure (Ppl).
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2 votes
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Condition of mucus coated trachea, but clear lungs?

Is there a medical condition or illness (what's the terminology??) for when there is an acute incidence of when the trachea is coated with so much mucus and phlegm that it causes labored breathing and ...
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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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