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Doctor insights on: Signs And Symptoms Of Lack Of Oxygen

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I'm curious. What symptoms go along with lack of oxygen?

I'm curious. What symptoms go along with lack of oxygen?

Many: Depending on whether it is acute or chronic. When chronic, there is fatigue, breathlessness on exertion and, if carbon dioxide levels are also rising, somnolence deteriorating to coma. When acute, there is confusion (think of pilots above 10, 000 feet without oxygen), cyanosis, breathlessness progressing to frank air hunger. If coronary disease is present, there is angina. ...Read more

Dr. James Krick
239 Doctors shared insights

Hypoxia (Definition)

Hypoxia, is a condition in which the body as a whole or a region of the body is deprived of adequate oxygen supply. It is classified into 4 groups: - hypoxemic - oxygen is low - anemic - decreased ability for hemoglobin to carry oxygen. - ischemic - decreased blood flow. - histotoxic - oxygen is reaching the cells, but the cells are unable to ...Read more


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When I laugh I feel dizzy like I'm going to pass out. Lack of oxygen? New symptom. Also when I cough. What could this be?

When I laugh I feel dizzy like I'm going to pass out. Lack of oxygen? New symptom. Also when I cough. What could this be?

Vagal response: It sound like you are getting s Vaal reaction initiated by the sudden increase in the abdominal pressure from laughing or coughing. Try to stay well hydrated by drinking at least 6-8 bottles of water a day in the winter and more in summer. Not better see a doctor ...Read more

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I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

Bleed in eye: Could be he means you have an artery occlusion in retina. If you have diabetes, high blood pressure, or an inflammatory condition, this can happen: you are able to send us your fundus photo and notes for detailed explanation via Concierge. ...Read more

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What's your opinion on treating lack of oxygen?

What's your opinion on treating lack of oxygen?

Mixed: As a pulmonologist I know that hypoxia (low oxygen saturation) is something to be avoided, but I think we may well over-prescribe oxygen therapy. There are trials going on to determine whether our current practice (provide supplemental o2 to anyone who drops below 88% saturation either at rest or with activity) is beneficial, harmless, or harmful. You may want to see if you are eligible for this. ...Read more

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What are the effects of lack of oxygen to the brain?

What are the effects of lack of oxygen to the brain?

Stroke or death: If localized area then patient will have stroke but if it's global and for long time then can cause brain death. ...Read more

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Help me out here: what is lack of oxygen?

Help me out here: what is lack of oxygen?

Low levels of oxygen: There are a few different ways to measure oxygen levels in your blood. Simply put, oxygen is necessary for your body to produce energy (to stay alive!) if the levels of oxygen are a little bit low, your body will slowly suffer. If its really low, the body cannot survive for long. There are several organs involved in delivering oxygen to your body. Which one is not functioning? ...Read more

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Can someone die in a stuck elevator for lack of oxygen?

Can someone die in a stuck elevator for lack of oxygen?

No: Elevators are not sealed. Air moves in and out of elevators. ...Read more

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How does a lack of oxygen affect the brain?

How does a lack of oxygen affect the brain?

Cerebral anoxia: Confusion or loss of consciousness, dizziness, seizures, coma. Oxygen deprivation to the brain causes brain cells to die within minutes. ...Read more

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Is all death lack of oxygen? Is all brain death lack of oxygen? Can humans die solely from too much oxygen?

Is all death lack of oxygen? Is all brain death lack of oxygen? Can humans die solely from too much oxygen?

Not for "BrainDeath": Yes lack of oxygen is a cause of brain damage from a variety of causes. One can also have brain death from trauma (head injury). Also metabolic issues such as to low blood sugars.
Also too much oxygen can damage the lung tissue. ...Read more

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How can I prevent lack of oxygen in my eyes?

How can I prevent lack of oxygen in my eyes?

Not a problem: The front of the eye gets its oxygen directly from the air. Contact lenses can diminish this but modern designs minimize this problem. If you are having trouble getting oxygen to the back of the eye, then you have a major circulatory system problem which needs cardiac attention. ...Read more

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Does a catscan show lack of oxygen in brain?

Does a catscan show lack of oxygen in brain?

CT scan brain: It can show that if the brain has suffered severe ischemic brain injury. However, in someone who is walking and talking, a ct is very unlikely to show any signs of a slightly diminished delivery of oxygen to the brain. ...Read more

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What are we doing in brain damage by lack of oxygen?

What are we doing in brain damage by lack of oxygen?

Hypoxia/anoxia: A lack or deficit of oxygen to the brain can occur for a variety of reasons. The term for this is hypoxia. Complete lack of oxygen is referred to as anoxia and is more severe. The neurons are particularly sensitive to this lack of oxygen and will die. This then results in the brain damage. In the most severe cirucumstances, this can lead to death of the patient. ...Read more

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Do you think out of body experience is brought on by lack of oxygen?

No there is no evide: No there is no evidence to support this. It happens in near death experiences, sometimes spontaneously, and sometimes with physical and mental trauma, dehydration, sensory deprivation, sensory overload, use of psychedelic drugs, or dream like state.
But lack of oxygen is not the cause. ...Read more

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Why should you put a person on ice after an accident involving a lack of oxygen?

Why should you put a person on ice after an accident involving a lack of oxygen?

In the newspaper: Cold temperature may protect the brain - hopefully. But not often successful.

This has even be discussed in newspapers. Unfortunately, it often does not make a difference. We still would like to have something better.

All the best. ...Read more

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Angina and yawning, is this caused by lack of oxygen?

Angina and yawning, is this caused by lack of oxygen?

Sort of yes but: Angina is the lack of oxygen in an area of the heart and is due usually to a closure or stricture of an artery.
Yawning is due to less oxygen and might very normal, happening when our respiration is slowed or just before falling asleep, is a normal happening. ...Read more

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What would happen if you got high altitude with lack of oxygen?

Several things: Some more likely than others. 1) your oxygen "pressure" will drop in your blood 2) the "saturation" of oxygen might drop, but usually remains the same except at very high altitude (>9, 000 ft) or for those with underlying lung/heart disease. 3) some can get headache, short of breath, or worse yet pulmonary edema. There are preventive treatments for those at risk, but the best treatment is descent. ...Read more

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Could a lack of oxygen to the eyes cause dark circles?

Could a lack of oxygen to the eyes cause dark circles?

Dark circles: Not enough sleep, illness, systemic allergies, dehydration, hereditary pigmentation (in darker skinned individuals). ...Read more

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Just had heart cath. Doc said that there were areas that shows lack of oxygen in heart. What could that mean?

Just had heart cath. Doc said that there were areas that shows lack of oxygen in heart. What could that mean?

Blockage: You have blockages (stenoses) in your coronary arteries, the arteries that carry oxygen to your heart muscle. If your doctor didn't recommend intervention (surgery or balloon), they must be relatively mild. In that case, life style changes with improved diet, more exercise, aspirin, metoprolol, and a statin are indicated. (and, of course, no smoking, if you do/did that). ...Read more

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Baby was born with lack of oxygen. What complications can this cause?

Baby was born with lack of oxygen. What complications can this cause?

Asphyxia: The lack of oxygen called asphyxia. It may cause injury to the brain and other organs. The neonatologist, who is taking care of the baby, should explain to you how bad it is. ...Read more

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How harmful for your health is it for you to black out from lack of oxygen?

Not good...: If you "black out" from lack of oxygen, it means your brain in not getting enough oxygen. It could also mean integer organs are not getting enough oxygen, like your heart, kidneys, liver, etc. You need to find out why you don't have enough oxygen and get treatment, which may include supplemental oxygen, if needed. ...Read more

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Friend told me they have Aspergers from a lack of oxygen when they were a baby. I don't believe them, but I could be wrong. Is this possible?

Friend told me they have Aspergers from a lack of oxygen when they were a baby. I don't believe them, but I could be wrong. Is this possible?

We don't know the: Exact cause of Aspergers, autism in general, bi-polar or ADHD, even though we have identified genetic markers for all. We do know that if the mother is using drugs while pregnant that the chances go up for the baby to develop any of these, but again, this is NOT a one-to-one correlation. Lack of O2 is correlated with learning disabilities, as well, so it could be a factor. ...Read more

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Can anxiety cause hypoxia, lack of oxygen problem?

Can anxiety cause hypoxia, lack of oxygen problem?

Many things.,,: Hypoxia refers to a decreased level of oxygen in the body. Many conditions can result in hypoxia including, but not limited to, lung conditions like acute asthma, copd, pulmonary embolism, etc., cardiac conditions like congestive heart failure, acute mi, valve abnormalities, etc., musculoskeletal conditions like als, diaphragmatic paralysis, etc. Hypoxia can lead to anxiety! ...Read more

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Does lack of oxygen at birth affect later behavior?

Yes it can: Many things can result from birth hypoxia: from nothing to severe cerebral palsy and death. Learning problems, behavioral problems, adhd, seizures occur at increased rates in neonatal hypoxia (oxygen deprivation). Not a good thing to have. If your baby suffered hypoxemia at birth, have her/him watched carefully by the pediatrician for the above problems. ...Read more

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Will I see dots in front of my eyes if I have a lack of oxygen?

You may: Most people that are hypoxic - start to feel whoozey and may see "stars" before they pass out. Rarely they feel hunger for air - this feeling is much more pronounced if a person has buildup of carbon dioxide. For many people both start to happen simultaneously but always. ...Read more

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If child does not cry at time of birth, he is having lack of oxygen?

If child does not cry at time of birth, he is having lack of oxygen?

Not necesarily: Some infants are rather quiet and ventilate well without ever crying.The iconic picture of a doc holding a kid up by its feet and slapping it on the bottom to get it to cry would be considered abusive by today's standards. It could hurt the hips and baby is allowed to pink upon its own with no negative effects. Monitoring of babies heart rate and breathing effort allow early intervention if needed. ...Read more

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Does lack of oxygen cause you to sleep? I've been falling asleep a lot lately.

Does lack of oxygen cause you to sleep? I've been falling asleep a lot lately.

An: An increase on co2 levels (hypercapnea) has more of a narcotizing effect than relative hypoxemia (lower oxygen), but either condition is unhealthy. You may very well have obstructive sleep apnea leading to daytime somnolence. You deserve a good cardio-pulmonary examination by your internist, and likely referral for a sleep study (polysomnogram=psg). ...Read more

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Is it bad when you yawn a lot? Sometimes I yawn a lot but feel fine. Not tired really. Lack of oxygen?

Yawning: Hello! I don't think the last word on the "cause" of yawning has been written. Its thought to be due to relative hypoxia. When or if you find out what the definitive cause is, please let me know! :-)) tthx ...Read more

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Does Dyspnea require actual shortage of oxygen or does it include the believed lack of oxygen? Can it be ruled out if oxygen supply 94-97%?

Does Dyspnea require actual shortage of oxygen or does it include the believed lack of oxygen? Can it be ruled out if oxygen supply 94-97%?

It's a symptom: First of all, the body compensates for bad lungs by increased breathing rate which is when people feel dyspnea.
second, you can have the feeling from increased pulmonary blood pressures but without problems with oxygenation.
These are some lung causes, there can be metabolic causes (cyanide or carbon monoxide, or acidosis, etc), and psychological causes. ...Read more

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Would a lack of oxygen in the brain cause a air hunger feeling?

Would a lack of oxygen in the brain cause a air hunger feeling?

Sure: The body is powerful and when not getting enough air (or oxygen) it will stimulate you to breath more coming from direction of your brain. It can also cause cloudy thinking or headaches. ...Read more

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Will a small hole in your heart cause lack of oxygen in your blood?

Asd or vsd: An atrial or ventricular septal defect (hole in the heart) that is small generally would not cause a problem with oxygenation. Moderately large or large size defects however can cause problems with oxygenation. ...Read more

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What is the probablity of a person with sleep apnea dying due to lack of oxygen?

What is the probablity of a person with sleep apnea dying due to lack of oxygen?

Sleep apnea: The greater the sleep apnea (classifications from mild to severe) the greater the chance of dying of " natural causes " in your sleep. Sleep apnea is a serious medical condition and should be actively treated. ...Read more

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Mama was in an accident and left brain damaged due to lack of oxygen 2 years ago. Will she ever be mama again?

The chances are poor: After 2 years it is unlikely there will be much further improvement in cerebral function after an anoxic event. However where there's life there's hope. ...Read more

Dr. Scott Bolhack
3,115 Doctors shared insights

Oxygen (Definition)

Oxygen is a gas that the cells in your body need to work properly. The air we breathe normally has 21% oxygen. A maximum of 100% oxygen can be given. Babies with heart or lung problems may need ...Read more