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Doctor insights on: At What Level Does Having A Lower O2 Saturation Become Possibly Harmful

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Please help docs! is oxygen saturation the same things as oxygen uptake?

Please help docs! is oxygen saturation the same things as oxygen uptake?

Not quite: Oxygen saturation reflects the proportion of red blood cell pigment - hemoglobin that is loaded ("saturated") with oxygen. It is unitless and shown as %. Oxygen uptake is the quantity of oxygen absobed/ consumed per unit time , usually in milliliters per min. ...Read more

Dr. Scott Bolhack
3,104 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


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What is o2 saturation level?

What is o2 saturation level?

Oxygen in the blood: Oxygen saturation is the percentage of the hemoglobin ( the part of the red blood cell that carries oxygen through the blood)that is carrying oxygen. ...Read more

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Can atrial flutter cause o2 saturation to be lower?

Can atrial flutter cause  o2 saturation to be lower?

Maybe: If the atrial flutter impairs the filling of the ventricles it can lead to decreased cardiac output which in turn can lead to pulmonary edema which, when severe enough, can impair gas exchange and decrease o2 saturations. ...Read more

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82 yr old o2 saturation level was more than 95% on ventilater but after removeing ventilater her o2 saturation drop up to 30% will she recover?

82 yr old o2 saturation level was more than 95% on ventilater but after removeing ventilater her o2 saturation drop up to 30% will she recover?

Depends: The cause of desaturation is the main way to tell the prognosis. She is on a ventilator so she is sick. But what is the cause? It also depends on the length of time she has been ill, the degree of settings of the ventilator. It is difficult to make a prediction without these informations. ...Read more

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What should the O2 saturation be for a CO2 level of 33? My mom has COPD, CHF, Asthma, Afib. She has an O2machine at home. Is 5% too high?

What should the O2 saturation be for a CO2 level of 33? My mom has COPD, CHF, Asthma, Afib.  She has an O2machine at home.  Is 5% too high?

Does not compute.: Your mother's situation is complex & I can't make sense of your question since the O2 saturation measures oxyhemoglobin & CO2 measures carbon dioxide pressure. (They can be unrelated). 5% O2 saturation is TOO LOW - not compatible with life - for arterial blood. Do you mean 5 LPM on the O2 tank? Use HealthTap Prime or TTYD to get correct answers, because there's no way to answer using 400 character ...Read more

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Would low O2 saturation levels at night below 90 for 2 to 3 hours with Cpap result from breast cancer radiation ? Normal lung function , chest X-ray

Would low O2 saturation levels at night below 90 for 2 to 3 hours with Cpap result from breast  cancer radiation ?  Normal lung function , chest X-ray

Probably not: Radiation damage to the lung can be detected functionally on pulmonary function tests. If your pulmonary function tests are completely normal, it would be unlikely that radiation lung damage was the cause of the fall in 02 saturation. ...Read more

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Does an av canal cause decreased o2 saturation in the blood?

Does an av canal cause decreased o2 saturation in the blood?

Yes, it can.: Yes, atrioventricular canal (av canal) defects can result in decresed oxygen saturation if there is a residual shunt (mixing of blue and pink blood) which can happen in presence of elevated pressures in the lung (pulmonary hypertension). Decresed oxygen saturation can also result from lung disease and other conditions. ...Read more

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O2 saturation 0.93 mol, pc02 5.6 kpa, po2 8.8 kpa, std bicarb 24.0 mmol/l are these normal results? If no what can cause this?

O2 saturation 0.93 mol, pc02 5.6 kpa, po2 8.8 kpa, std bicarb 24.0 mmol/l are these normal results? If no what can cause this?

It depends: We use lab test to help characterize the underlying condition, and to try to determine what to do next. When they are presented in the absence of the clinical situation, we can't make any conclusions one way or another. ...Read more

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I felt little dizzied like passing out during my stress echo test. However all my results came normal and o2 saturation were 98-99. Is that normal?

I felt little dizzied like passing out during my stress echo test. However all my results came normal and o2 saturation were 98-99. Is that normal?

Probably OK: many people are a little anxious doing a stress echo test. Between the anxiety and the exercise some people actually hyperventilate a little during the test and this can result in the sensation of lightheadedness. ...Read more

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In blood gas results is a po2 arterial result of 18 and an o2 saturation of 28.8 really bad?

In blood gas results is a po2 arterial result of 18 and an o2 saturation of 28.8 really bad?

Pretty bad: If a hospital, we look for a values of 40 and 90% +! those numbers might be a mistake (venous not arterial blood). You would have a hard time staying awake if that was your arterial blood gas! ...Read more

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Feel great. Heart checks out, no resp infections. Noticed o2 saturation drops to 89 at night. Have sleep apnea. This the cause? Daytime is 94-95

Feel great. Heart checks out, no resp infections. Noticed o2 saturation drops to 89 at night. Have sleep apnea. This the cause? Daytime is 94-95

Sleep apnea: Sleep apnea is defined as stopping breathing for at least 10 seconds and having blood oxygen levels drop below 90%. If you know you have sleep apnea, why haven't you been advised about either CPAP or custom dental device to open the airways to allow proper oxygenation? Please discuss this with your md asap!. You are at risk for heart attack, stroke, high blood pressure, diabetes and more. ...Read more

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In ER w/ numb cheek+ arm, pallor. CBC + EKG normal.Oximeter showed 99% sat. BUT venous gas blood O2 saturation LOW at 0.34 (ref. range 0.5-0.8). WHY?

In ER w/ numb cheek+ arm, pallor. CBC + EKG normal.Oximeter showed 99% sat. BUT venous gas blood O2 saturation LOW at 0.34 (ref. range 0.5-0.8). WHY?

Extraction or anemia: The oximeter only shows the amt of oxygen binding of the existing hemoglobin in the ARTERIES. JUST BECAUSE UR SATS R FINE DOESN'T MEAN EVERYTHING IS FINE. This is a common mistake even docs make. In ur case, the VENOUS blood has lower O2 content. It cd mean the body is using up more O2 (more extraction) d/t infx,, vascular probs, smoking, etc. Or u cd be anemic. Less Hgb = lower O2 content. TTYD! ...Read more

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Are oxygen saturation levels lower in the elderly?

Not necessarily: As we age, it may get a little harder for the oxygen to get into the blood through your lungs. But, as long as you have healthy lungs, the oxygen saturation levels can be normal well into one's 80s or 90s. ...Read more

Dr. Tony Su Dr. Su
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How do I get my oxygen saturation level up?

Dr. Tony Su Dr. Su
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How do I get my oxygen saturation level up?

Several factors: Several factors determine oxygen saturation. These include the amount of oxygen you breathe, the ability of the lungs to extract oxygen, the amount of red cells to carry oxygen, the ability of the heart and blood vessels to deliver oxygen to tissues, and efficiency of organ to use oxygen, any problems affecting these can cause low saruration. Treating a disease, exercise, supplemental o2 may help. ...Read more

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Why can't i breath but my oxygen saturation level is good?

Why can't i breath but my oxygen saturation level is good?

Shortness of breath: ...Is caused by many abnormalities in the body, not simply low o2 levels. Some patients can have significant shortness of breath from copd, pneumonia, asthma and other illnesses without a low o2 level. If you continue to have trouble, you should see a doctor for evaluation to figure out why this is happening. ...Read more

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What helps the body maintain a healthy oxygen saturation levels?

O2 goes into lung: Traverse the interstitial to the blood vessel wall to the blood cells goes to tissues and be delivered. Normal saturation therefore depends on the oxygen source, healthy alveoli with enough surface area, thin and healthy interstitial and blood vessel wall and normal and adequate blood cells and healthy consumption of o2. That is the balance. ...Read more