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Doctor insights on: Blood Oxygen Finger Extremities

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Can your blood oxygen level from your finger differ from your lower extremities?

Can your blood oxygen level from your finger differ from your lower extremities?

Yes: Absolutely. Depending on the degree of vascular disease in your arms and legs, this can definitely vary. However it is less common to have vascular disease in your arms than in your feet. This is why oxygen levels in the fingers are most often more accurate than in the toes in people with vascular disease. ...Read more

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Dr. Scott Bolhack
3,102 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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Have unrepaired ASD; tingling&numbness in fingers when pulse is below 90, in feet below 80, now moving to face. Is this due to poor blood flow/O2?

Have unrepaired ASD; tingling&numbness in fingers when pulse is below 90, in feet below 80, now moving to face. Is this due to poor blood flow/O2?

Asd: These would be unusual symptoms for ASD or for heart rates under 80. This type of generalized parasthesiae can be due to deficiencies in vitamin B12,magnesium,calcium,potassium or types of neuropathy. Discuss this with your physician who will order the appropriate tests and/or refer you to a neurologist. ...Read more

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COPD breathlessness gets real bad. I do symbicourt, incruse and a nebulizer with no relief. Blood oxygen is in a he 90's. What more can I do or take. ?

COPD breathlessness gets real bad. I do symbicourt, incruse and a nebulizer with no relief. Blood oxygen is in a he 90's. What more can I do or take. ?

See below: I would recommend having a follow up with your pulmonologist. You are on good medications. However, if you are having a flare up, you may need more acute treatment. If you are not, then you may need other testing done, such as an ECHO or maybe try pulmonary rehab. I would be happy to discuss further if you need more information. Hope you feel better. ...Read more

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How can oxygen get in the Blood?

How can oxygen get in the Blood?

How it works: The process of oxygen getting into the blood goes like this. First we inhale air with oxygen in it. Little pockets in the lung called alveoli fill with the air and the oxygen diffuses into capillaries. This oxygenated blood then goes back to the heart where it is pumped around to the rest of the body. When it reaches capillary beds in our tissues the oxygen diffuses out into the tissues. ...Read more

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Are low blood oxygen levels normal?

High is good.: Well you would anticipate 95 to 100% oxygen saturation for a young healthy adult. The lower the oxygen saturation the more concern. ...Read more

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What happens when blood oxygen is low?

What happens when blood oxygen is low?

Oxygen: Shortness of breath happens because of low oxygen blood level. The rbcs have low level oxygen and effect the kidney , heart and brain tissues function. Your doctor has to find the causes of low blood oxygen quickly and treat them. ...Read more

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I need to know what's an optimal blood oxygen level?

I need to know what's an optimal blood oxygen level?

Depends: On your age and condition . It is usually reported by%. For example a little baby you would want to be high, close to 100% and if sick not lower than 92% when ill and hospitalized. A normal person walking around is usually 96- 100%. If a person has a chronic lung condition lower percentages of oxygen are acceptable, down to about 88%. ...Read more

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What exactly does it mean if you have high oxygen levels in your blood?

What exactly does it mean if you have high oxygen levels in your blood?

Ambient air is about: 21% o2, and healthy lungs produce a po2 of 80-100%. Babies in nicu's treated with 100% due to respiratory immaturity could get pulmonarty and retro lentar fibrosis. One does not do well with higher levels of o2. Like goldylocks, not too little, not too much: just right. ...Read more

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Are finger oxygen meters accurate?

Are finger oxygen meters accurate?

Fairly accurate: They are fairly accurate for most people for most purposes. Not all finger oxygen saturation meters are the same. They don't all come from the same manufacturer. Oxygen saturation meters that are "medical grade" probably can claim a higher degree of accuracy, but in real life situations, it isn't clear what that would mean. ...Read more

Extremity (Definition)

Is appendage or body part that extends from the main body, such as arms or ...Read more