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Doctor insights on: Nocturnal Hypoxia

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What is nocturnal hypoxemia?

What is nocturnal hypoxemia?

Low oxygen at night: Many causes like sleep apnea, copd, emphysema, heart disease etc. Can cause nocturnal hypoxemia or low level of oxygen at night. It is important medical condition. For its evaluation one may need overnight pulse oximetry to diagnose and if present needs use of home oxygen. Saturation below 87% or less is significant on room air. Consider evaluation by lung doctor if present. ...Read more

Dr. Austina Cho
238 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 use ...Read more


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What's the difference between sleep apnea and nocturnal hypoxemia?

What's the difference between sleep apnea and nocturnal hypoxemia?

Overlap: Nocturnal hypoxia is a drop in oxygen in the blood when sleeping. It's associated with sleep apnea, but also with hypoxic chronic bronchitis pulmonary hypertension and emphysema. Sleep apnea can be due to airway obstruction or of central origin. It causes reduced oxygen, often dangerously, and arousal from sleep, leading to daytime fatigue. ...Read more

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What are the differences between sleep apnea and nocturnal hypoxemia?

What are the differences between sleep apnea and nocturnal hypoxemia?

2 different condtion: sleep apnea is when there is a cessation of airflow with sleep and breathing. The most common type of sleep apnea is obstructive sleep apnea when the upper airway gets blocked. Nocturnal hypoxia is a general term for low oxygen with sleep. Sleep apnea can cause nocturnal hypoxia, though many other conditions can cause nocturnal hypoxia without sleep apnea such as copd or heart disease. ...Read more

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I recently had to have a sleep study done. It cam back that I have obstructive sleep apnea & significant nocturnal hypoxemia. Should i consider cpap or look into things further & see my other options?

I recently had to have a sleep study done. It cam back that I have obstructive sleep apnea & significant nocturnal hypoxemia. Should i consider cpap or look into things further & see my other options?

Depends: Having sleep apnea is significant, but how severe was your ahi. Moderate to severe osa carries a significant cardiovascular risk and should be treated. The gold standard would be a CPAP and this would be what your insurance generally covers first line. If your osa is more mild to moderate, you could consider alternative treatment options. ...Read more

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What fixes low oxygen level at night?

What fixes low oxygen level at night?

Depends on cause...: Most often, this is related to obstructive sleep apnea. This is when your airway becomes "floppy" while sleeping. The airway closes and no air can pass into the lungs. Therefore, the oxygen level drops. Using oxygen at night won't fix the problem if this is related to sleep apnea. You will need a special machine that increases the pressure in your airway while sleeping. See a sleep doctor. ...Read more

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I'm 59 years old can low oxygen at night cause headaces that don't go away doing the day?

I'm 59 years old can low oxygen at night cause headaces that don't go away doing the day?

Check with your doc: Low oxygen shows there is a problem and your brain cells and heart cells are at risk. A sleep study is certainly useful to fix the problem. Check with your sleep doc asap. ...Read more

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My husband md said he has low oxygen at night that's why he's always sleepy, how can we improve it?

Low oxygen: Low oxygen during sleep can be due to sleep apnea. There are other causes for low oxygen (hypoxia) including copd/emphysema, pulmonary and interstitial lung disease. I do recommend he follows with a physician to rule out other causes. If it is sleep apnea he may need oxygen at night and machine called CPAP to force air into his lungs. ...Read more

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Can snoring cause low oxygen at night? oxygen was lowest 83% 3 min frame On 2 liter oxygen at night.Still tired in day. No sleepapena heart related

Can snoring cause low oxygen at night? oxygen was lowest 83%  3 min frame On 2 liter oxygen at night.Still tired in day. No sleepapena heart related

OSA: snoring by itself my not cause a drop in oxygen saturation, however, obstructive sleep apnea (OSA) or hypopnea/hypoventilation can. If there are concerns and there are risk factors, it is best to get a comprehensive sleep study ...Read more

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I get morning migraines heada%e7he from lack of oxygen due to sleep apnea induce asthma attack at night. Cpap triger asthma attacks with coughing spel?

I get morning migraines heada%e7he from lack of oxygen due to sleep apnea induce asthma attack at night. Cpap triger asthma attacks with coughing spel?

Dryness?: One of the chief complaints of CPAP is dryness which may contribute to your asthma. Humidification can be added to your CPAP device, and another comment would be about the proper cleaning of the unit. ...Read more

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What is hypobaric hypoxia?

What is hypobaric hypoxia?

Hypoxia: Low atmospheric pressure leading to low oxygen in body. ...Read more

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What are hypoxia and asphyxia?

See below: Hypoxia is a lack of oxygen in the bloodstream. Asphyxia, or suffocation, is the consequence of hypoxia. ...Read more

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What is hypoxia versus ischemia?

What is hypoxia versus ischemia?

Hypoxia is : Referring to low oxygenation levels globally in the body whereas ischemia refers to low oxygen levels in localized tissue. ...Read more

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Could you explain sleep hypoxia?

Hypoxia: All of us do have some degree of decreasing our oxygen level and some desaturation during sleep, due to depression of the respiratory center and by weight of our chest and lack of effort some degree of atelectasis. If the oxygenation goes low enough as in sleep apnea, then there is hypoxia, or in people who have lower oxygen level to start with like copd. ...Read more

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How are hypoxia and hypoperfusion different?

Blood flow: Hypoperfusion is the lack of adequate blood flow. Blood carries oxygen. If there is hypo perfusion then hypoxia can occur. On the other hand, even if there is good blood flow if there is not enough oxygen in that blood there is still hypoxia both in the blood measured for oxygen and in the tissue getting perfused. ...Read more

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Please explain why vasoconstriction happens in hypoxia?

Please explain why vasoconstriction happens in hypoxia?

Not whole body: In fact more parts of the body will have vasodilation, as in organs and muscles you then resort to anaerobic respirations which causes Lactic Acid production and causes vasodilation. The skin on the other hand thee may be vasoconstriction to preserve the flow of oxygen to the essential organs. ...Read more

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Please help! what is the difference between asphyxia and hypoxia?

Semantics: Hypoxia is low oxygen tension in the blood or in the body. Asphyxia is when one can't breath, as in choking or drowning and unable to breath in air or oxygen. ...Read more

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My husband was told he is hypoxic following his pneumonia. What could might cause this hypoxia?

My husband was told he is hypoxic following his pneumonia. What could might cause this hypoxia?

Depends: If your husband is still hypoxic after being discharged, i would believe that he is on home oxygen (i hope). Nevertheless, if he is still hypoxic, i could mean that his lungs are still in the process of healing and clearing out the pneumonia or that he has sustained damage (scarring) and that affected part of his lung(s) is not able to exchange gases (o2 and co2) anymore. ...Read more

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Greeting's. I was wondering after living with beh'cet's syndrome for over 15 years and now having hypoxia ? Related to pfo, would repair b worth it?

Greeting's.  I was wondering after living with beh'cet's syndrome for over 15 years and now having hypoxia ? Related to pfo, would repair b worth it?

Possibly: This isn't easy to answer since there are other considerations. Is the pfo related to pulmonary hypertension? Do you have other reasons to be hypoxic? There certainly can be good reasons to fix a pfo, but you should discuss this with your doctors and even get a second opinion so you can feel confident you're making a good decision. ...Read more

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What is hypoxia?

What is hypoxia?

Decreased oxygen: Hypoxia is a medical term for a decreased amount of oxygen in the blood. There are many reasons this can happen but it is a problem that requires evaluation and treatment. ...Read more

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What is a concept map of hypoxia?

Hypoxia: Any cause leading to low oxygen in blood - low oxygen in the air ( altitude ) , poor breathing ( poor ventilation) , obstruction in airflow tract ( asthma, copd, mechanical, sleep apnea), problems in lungs loosing area of air and blood contact ( collapse, pneumonia, bloodclots) , bad lungs ( emphysema, fibrosis), lung blood vessels( pulmonary hypertension, vasculitis) and chemicals (cyanide, met. ...Read more

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How can hypoxia cause cell damage?

Hypoxia: Every cell in the body needs oxygen to function fully. Lack of oxygen will kill it. ...Read more

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How long does hypoxia take to heal?

How long does hypoxia take to heal?

Complicated: It depends on the circulatory and pulmonary system, and the oxygen in the ambient system. ...Read more

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Can anyone explain the biology of tissue hypoxia?

Lack of oxygen: Tissue hypoxia means not enough oxygen is being delivered to the tissue in question. This may occur for many reasons including lung problems, heart problems, circulation problems or obstruction of the airway (as in sleep apnea) treating the underlying cause is ideal; supplementing with oxygen may also be helpful. ...Read more

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Please explain what are some symptoms of hypoxia?

Low oxygen: Hypoxia is the low tension of oxygen, hypoxemia is low oxygen tension or amount in the blood, desaturation is low measured oxygen occupying the red blood cells. When there is hypoxia, there is air hunger, so a person will breath harder to catch air, there is dyspnea. The signs could range from cyanosis or bluish skin or nail beds, confusion, unconsciousness or frank heart attack. ...Read more

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What is the definition or description of: hypoxia?

Low Oxygen Supply: 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 use the oxygen ( cyanide). ...Read more

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Explain hypoxia vs hypoxemia?

Tissues vs. blood: Hypoxia is low oxygen in the tissues. Hypoxemia is low oxygen in the arterial blood. Hypoxemia caused by low oxygen in air (such as high altitude), low ventilation (slow breathing oversedation), lung disease or blood clots in lung. Low oxygen in arterial blood leads to low oxygen in tissues but hypoxia can also be due to anemia (less oxygen carrying capacity by blood), carbon monoxide poisoning. ...Read more

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Why is there cyanosis during hypoxia?

Low oxygen: Cooling slows down metabolic process of circulatory system and oxygen levels fall. ...Read more

Nocturnal (Definition)

This term is used to note that something ...Read more