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Doctor insights on: O2 Sat

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Dr. Scott Bolhack
3,112 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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Dr. Manur, I had a pft last year when this started came back perfectly normal. O2 sat 99/100% always. Weight 200, need to be @ 185 but weightlift. Y?

Dr. Manur, I had a pft last year when this started came back perfectly normal. O2 sat 99/100% always. Weight 200, need to be @ 185 but weightlift. Y?

Yes.: If you are a healthy person without heart or lung disease, you can do cv exercise and weight lifting without restriction. To lose weight; cv exercise will be helpful. Weight lifting build muscles and muscles weigh more than fat. So initially you might seem to be gaining weight before you will start loosing.
Hope you are not smoking, and your breathlessness has improved. ...Read more

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Is it normal for your o2 sat to go up when your pulse goes up?

Is it normal for your o2 sat to go up when your pulse goes up?

Unusual: It is concerning for an O2 Sat to go significantly DOWN with pulse rising.
There may be small variability in O2 sat within the normal range and movement can also affect the accuracy of the sensor. It is also possible that the apparent heart rate and saturation on the monitor were initially falsely reading low because the connection was poor and that may explain the pattern. ...Read more

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My o2 sats went down to 81 percent. Will I have to go on oxygen therapy?

My o2 sats went down to 81 percent. Will I have to go on oxygen therapy?

Depends: What is your underlying problem? Did you check whether pulse oximetry is registering your o2 correctly? Generally if your o2sats are below 85% you will qualify for oxygen per medicare guidelines. Please go to your doctor get checked. ...Read more

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Could you exercise on oxygen if you have emphysema and your o2 sat dip to low 90s?

Could you exercise on oxygen if you have emphysema and your o2 sat dip to low 90s?

Yes: As long as your o2 sats stay at 90% or above, your cells will get plenty of oxygen, and you can exercise safely on oxygen.

There is very little increased benefit with o2 sats greater than 90%. The key is to stay above 90%. ...Read more

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What's the point of pulse oximetry if you can have O2 sats between 97-100% and still have breathing issues?

What's the point of pulse oximetry if you can have O2 sats between 97-100% and still have breathing issues?

Pulse ox: Pulse oximetry measures the oxygen in your blood and rules out certain disease entities but further work up for shortness of breath such as breathing tests, and heart function are included in the work up ...Read more

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My baby is 3.5 months old. We use an owlet monitor (monitors HR & O2 sat) at night. He is sating in the low 90s. Is that ok?

My baby is 3.5 months old. We use an owlet monitor (monitors HR & O2 sat) at night. He is sating in the low 90s. Is that ok?

Sats okay, .....but: That's perfectly normal saturation for an infant. My bigger concern, though, is why you are doing this monitoring. Please don't turn into a helicopter mom to your child at just 3 months of age. Unless there is a very specific medical readon for this monitoring, please just let your baby sleep normally and in peace without being hooked up to make you feel more secure.... ...Read more

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Had an angiogram, came up clear. In recovery the o2 sat machine kept going off due to hitting 89. Could the sedative used in procedure cause this?

Had an angiogram, came up clear. In recovery the o2 sat machine kept going off due to hitting 89. Could the sedative used in procedure cause this?

Yes: Sedation can cause hypoventilation, or slow breathing. It can also be related to smoking or other lung issues. Relax. They would not have sent you home if there was an issue. ...Read more

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Is o2 sat of 93 or 94 ok? 92 with mild hypertension and previous mild chf

Generally yes: Anything over 90% is considered acceptable for most people at rest. Below that level supplemental oxygen may be prescribed. If your sats drop dramatically with any exertion or during sleep, you might still need oxygen for those activities. If you are short of breath even with the 93-94% readings, discuss it with your doctor. ...Read more

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Enlarged axillary nodes. Sob. Normal cxr. Normal stress test. Normal o2 sat?

Enlarged axillary nodes. Sob. Normal cxr. Normal stress test. Normal o2 sat?

See a doctor: Enlarged lymph nodes have many causes. You should see a health care professional to evaluate the cause. ...Read more

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Age 26 c/o chest pressure w/ slight SOB for the past 2 wks. O2 sats 94% — 96% consistently. Not sure if serious enough to visit dr or may be anxiety?

Age 26 c/o chest pressure w/ slight SOB for the past 2 wks. O2 sats 94% — 96% consistently. Not sure if serious enough to visit dr or may be anxiety?

Serious enough? : It sounds like the symptoms you describe could result from anything incl mild URI 2 anxiety disorder. It sounds like sxs R quite distressing to you, and have been going on for 2 weeks now. What makes you feel that anxiety is not a serious medical concern? Get into your doc ASAP to establish diagnosis and begin treatment, whatever the diagnosis. If it is anxiety, that's a real medical problem too ...Read more

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Have periods of constant yawning with mild SOB for 10yrs since I was a teen. O2 sat and PFT tests normal. Not stressed and don't take medicine that has it as side effect. Suggestions for relief?

Have periods of constant yawning with mild SOB for 10yrs since I was a teen. O2 sat and PFT tests normal. Not stressed and don't take medicine that has it as side effect. Suggestions for relief?

Fatigue: There can be various different reasons for this, anxiety is a common cause, sleep disorders such as obstructive sleep apnea & narcolepsy certain neuro & psych d/o are in the differential, sometimes being overweight & obese can be a cause. Recommend healthy low carb diet, regular exercise, at least 8 hrs of sleep w/ regular bed time & awakening. If not improved consider getting a sleep study done ...Read more

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I use a cpap machine and during the day I feel short of breath but my o2 sat is 99%. Is that normal?

I use a cpap machine and during the day I feel short of breath but my o2 sat is 99%. Is that normal?

Short of breath: If you are short of breath with normal oxygenation, that implies you have an increased work of breathing. You should see your doctor and get checked out. ...Read more

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What's a normal heart rate immediately after a light walk, such as walking in wal mart? Pulse ox said mine was 116 bpm with 97% O2 sat.

What's a normal heart rate immediately after a light walk, such as walking in wal mart? Pulse ox said mine was 116 bpm with 97% O2 sat.

Hr of 116 o2 sat 97%: Should be an above the normal rate, what is your rate at rest? 60-70? Then should be 80-90 for a light walk, however young people have faster heart rates than tthe elderly, therefore you may fall into the normal parameters .
As the walking intensity increases the rate will too. Do you get any shortness of breath?
The O2 sat of 97% is normal, increment of heart rate ...Read more

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If someone has a bruised lung from car wreck and sent home from hosp, how bad is it if their o2 sat is 80percent while on 30 percent oxygen?

If someone has a bruised lung from car wreck and sent home from hosp, how bad is it if their o2 sat is 80percent while on 30 percent oxygen?

Any O2: Saturation below 92% is abnormal and below 89% is dangerous. If spo2 of 80% on 30% oxygen is true figure, it is very dangerously low. This person should be in the ICU at the hospital. ...Read more

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9 week old. Tracheal retractions, subcostal retractions, noisy breathing, poor feeding — can this be normal? O2 sat is fine but working to be there.

9 week old. Tracheal retractions, subcostal retractions, noisy breathing, poor feeding — can this be normal? O2 sat is fine but working to be there.

Office evaluation!: Symptoms suggestive of croup or bronchiolitis. When baby is so young, particularly when there is labored breathing with retractions, should be seen in office ...Read more

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I have been placed on o2 6lt I have turned it down to 3 when I am sitting o2 sats 96% + when I walk or take off o2 they drop 78% have long history of asthma multiple intubations and normaly I am ok on steroids I am on a lot of meds for my asthma

I have been placed on o2 6lt I have turned it down to 3 when I am sitting o2 sats 96% + when I walk or take off o2 they drop 78% have long history of asthma multiple intubations and normaly I am ok on steroids I am on a lot of meds for my asthma

Is there: A question there? No need to keep sats above 94% so you can titrate your o2 down to that number when possible. Obviously when you become more active, which for you is just modest movement your oxygen needs increase. Therefore, tight management is required: beta2 agonists, steroids, antibx when needed. Vigilance is key. I hope you see a pulmonologist regularly. ...Read more

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What does this indicate a pco2 arterial of 24, pH 7.49, co2 whole blood 18.8, o2 sat. 98.4 all from a blood gas

What does this indicate a pco2 arterial of 24, pH 7.49, co2 whole blood 18.8, o2 sat. 98.4 all from a blood gas

Lab data: The pc02 is low suggesting that you are blowing off carbon dioxide at an excessive rate, perhaps from hyperventilation. The p02 is normal, and the total c02 is the sum of hco3? And pco2 by the formula: tco2 = [hco3?] +?*pco2, where?=0.226 mm/kpa, hco3? Is expressed in millimolar concentration (mm) (mmol/l) and pco2 is expressed in kpa. 18.8 is low. Speak with your doctor. ...Read more

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Is it possible to have normal o2 sats during an asthma attack? What do o2 sats look like during anaphylaxis? What could wheezing w/normal o2 sats be?

Is it possible to have normal o2 sats during an asthma attack? What do o2 sats look like during anaphylaxis? What could wheezing w/normal o2 sats be?

One at a time please: Yes, it's possible to have normal o2 sats during a mild asthma attack. The o2 sats during an anaphylactic reaction will get worse as the reaction progresses, unless it's stopped by appropriate medical care. Wheezing with normal o2 sats happens when for many reasons: could be mild bronchiolitis/bronchitis, mild asthma, a foreign body in the airway, could be something else mistaken for wheezing. ...Read more

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My mother is 84 and had Hernia surgery on monday. She was kept in the hospital due to low O2 sat. This is day three and she has had her oxygen increas?

My mother is 84 and had Hernia surgery on monday. She was kept in the hospital due to low O2 sat. This is day three and she has had her oxygen increas?

Hypoxia: There would be many potential causes. Among possible concerns would be aspiration around the time of surgery, development of a pneumonia, even congestive heart failure. At 84, you must decide how aggressive to be with her in terms of work yo and treatment. First step is establishing the diagnosis. ...Read more

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Gradual sob on exertion (x 2 mo). Discomfort in luq/chest c insp wheeze l lat base & increased orthopnea. Afebrile. Infequent dry cough. O2 sat 99% ra?

Gradual sob on exertion (x 2 mo). Discomfort in luq/chest c insp wheeze l lat base & increased orthopnea. Afebrile. Infequent dry cough. O2 sat 99% ra?

Get examined: Anytime you are getting more short of breath and particularly with wheezing you should have a better examination by your doctor. This could simply be asthma but you need further evaluation to rule out other medical concerns.
Get well. ...Read more

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My daughter has cchs- her dr seems puzzled when we explain that her o2 sats run low, while still maintaining an appropriate co2 level. The best they have come up with is malacia- she shows no signs of pulmonary hypertension. What else should we have rul

My daughter has cchs- her dr seems puzzled when we explain that her o2 sats run low, while still maintaining an appropriate co2 level.  The best they have come up with is malacia- she shows no signs of pulmonary hypertension.  What else should we have rul

A few things: As you know, cchs is a rare condition and is not fully understood. There are a number of diseases that are associated with and syndromic with cchs. An example is hirschprungs disease, which seems to share a link with an underlying genetic defect that also can cause cchs. The best way to evaluate is a pulmonoligist affiliated with a children's hospital that has a wide range of subspecialities. ...Read more

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I took my normal dose of Adderall (dextroamphetamine and racemic amphetamine) Xr 30 mg and my heart rate is 176 BPM O2 sat at 89 I am having a hard time catching my breath as well. What should I do?

I took my normal dose of Adderall (dextroamphetamine and racemic amphetamine) Xr 30 mg and my heart rate is 176 BPM O2 sat at 89 I am having a hard time catching my breath as well. What should I do?

If those numbers are: Valid they are cause for concern. But if you are using a home monitor I suspect malfunction. You would be having symptoms as well. Check your wrist pulse with finger. Get it checked out. ...Read more

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NDoes eppiglotitis happen quickly or slowly? Feeling throat is closing from cold/flu virus. Hard to breath but o2 sats ok?

NDoes eppiglotitis happen quickly or slowly? Feeling throat is closing from cold/flu virus. Hard to breath but o2 sats ok?

Thought IsEpiglottis: In young kids it can come on quick but thanks to the vaccine it's rare now. An adult airway is much larger so if you get it, it can come on slowly. You'll have a very sore throat but won't see much redness in the throat.You're breathing may sound raspy and you'll probably have a fever. Luckily most adults can survive the infection. Children used to get into all kinds of tsuris. But you'll need treatment ...Read more

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Is it alright to place a child on 1/2 lpm of oxygen while sats remain above 95 but rr>35? On o2, rr20

Unable to answer: The doctor(s) who manage a child's oxygen or ventilator settings will give parents very specific guidelines on how to adjust the settings. Every child is different. Sometimes doctor's adjust settings according to the oxygen saturation, while other times respiratory rate or carbon dioxide levels are also a factor. Sometimes parents are allowed to change settings only after contacting the doctor. ...Read more