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What is a Coma? A coma is a state of deep unconsciousness in which someone is unresponsive to their environment. It usually arises from an injury or illness and can last for a few days, weeks, months, or even years. A person in a coma may be able to open their eyes and make reflexive movements...

Nitrogen, an odorless, colorless, and tasteless gas, is a major component of the air we breathe. While nitrogen is non-toxic in its natural state, it can be dangerous when inhaled in large amounts. Exposure to high levels of nitrogen may cause a variety of lung problems, including shortness of...

Nitrogen Asphyxiation: How Quickly Does It Occur? Nitrogen asphyxiation occurs when a person is deprived of oxygen and their body is exposed to an atmosphere with an abnormally high level of nitrogen gas. This can lead to a loss of consciousness, coma, and even death. It is important to...

Subtitle Forum: Does Hypoxia Always Cause Hypercapnia? Hypoxia and hypercapnia are two terms used to describe the amount of oxygen and carbon dioxide in the body. While hypoxia is a condition in which the body does not get enough oxygen, hypercapnia is a condition in which the body has too much...

Do We Breathe Out Carbon Monoxide or Carbon Dioxide? The answer to this question is that we breathe out carbon dioxide, not carbon monoxide. Carbon dioxide is an odorless and colorless gas composed of two oxygen atoms and one carbon atom. It is a product of cellular respiration and is essential...

CPR stands for Cardiopulmonary Resuscitation, and it is a life-saving technique used in emergencies when a person's heart or breathing has stopped. In such situations, CPR can help keep vital oxygen and blood flowing to the heart and brain until medical help arrives. Does CPR Hurt? CPR is not...

Oxygen and Hypercapnia What is Hypercapnia? Hypercapnia, also known as hypercarbia or CO2 retention, is a condition in which there are abnormally high levels of carbon dioxide (CO2) in the bloodstream. This can lead to an increase in the acidity of the blood (respiratory acidosis) and can...

Subtitle Forum: Could very long or difficult delivery be the cause of birth asphyxia? Birth asphyxia is a condition in which a baby does not receive enough oxygen before, during, or after birth. This can lead to serious complications, including brain damage, organ damage, and even death. Many...

Common Chemical Suffocating Gases The most common chemical suffocating gases are carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2), and ozone (O3). Carbon Monoxide (CO) Carbon monoxide is a poisonous gas produced by burning materials containing carbon, such as natural gas...

Introduction The use of electronic cigarettes or vaporizers has become increasingly popular in recent years. Electronic cigarettes (e-cigarettes) are battery-operated devices that heat a liquid containing nicotine and other chemicals to create an aerosol. This aerosol is then inhaled by the...

CO2 (carbon dioxide) is a gas produced when we breathe. It is a normal part of the air we breathe and is necessary for life on earth. In fact, plants need CO2 to survive and generate oxygen as a byproduct. How Much CO2 is Breathed Out? The amount of CO2 that is breathed out depends on the...

Non-fatal strangulation injuries can range from mild to severe. The most common non-fatal strangulation injuries include: Neck Trauma Neck trauma is the most common type of injury associated with strangulation. Symptoms of neck trauma may include: neck stiffness, soreness, tenderness...

Positional asphyxia is a rare but serious condition that occurs when a person’s position prevents them from taking in enough oxygen. It can occur in a variety of situations, including during medical procedures, during sleep, or during physical restraint. What Is Positional Asphyxia? Positional...

What is a Heartbeat? A heartbeat is the rhythmic pumping of blood through the circulatory system by the heart. It is usually measured in beats per minute (BPM). The average resting heart rate is between 60 and 100 BPM. How Long Can You Have No Heartbeat? The length of time you can have no...

An anesthesiologist can assess a patient's level of sedation and determine when they are asleep by observing certain physical signs. These include: Vital Signs The anesthesiologist will monitor vital signs such as blood pressure, heart rate, and respiratory rate to ensure that the patient is...

Is CO2 Gas Flammable? Carbon dioxide (CO2) is a colorless, odorless gas that is naturally present in the Earth's atmosphere. It is also a by-product of burning fossil fuels, and it is a major contributor to climate change. But one of the most common questions about CO2 is whether it is...

Subtitle Forum: Is Lack of Oxygen Called Hypoxia? Yes, a lack of oxygen is referred to as hypoxia. Hypoxia occurs when the body or a region of the body does not receive enough oxygen to function properly. Hypoxia can be caused by several different conditions, such as high altitude, medical...

The answer to this question is yes, it is possible to be unresponsive with eyes open. This is known as an ‘unresponsive wakefulness syndrome’ (UWS) – a condition where a person is awake but not able to respond to any external stimuli. Causes of Unresponsive Wakefulness Syndrome UWS can be...

Can You Breathe 100% Oxygen? The short answer to this question is yes, it is possible to breathe 100% oxygen. However, breathing pure oxygen can be dangerous and should only be done under appropriate supervision. Oxygen is essential for life and the human body needs it to function properly...

Can CO2 poisoning happen slowly? Subtitle Forum Carbon dioxide (CO2) poisoning is a potentially fatal condition that can occur when too much CO2 is present in the air. High CO2 levels can cause a range of symptoms, from mild headaches and nausea to more serious issues, such as confusion...