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Doctor insights on: Can Your Blood Oxygen Level From Your Finger Differ From Your Lower 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
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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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My blood oxygen level is too low. What could happen if it got lower?

My blood oxygen level is too low. What could happen if it got lower?

Low oxygen: Our body tissues needs constant supply of oxygen to perform optimally. If it gets too low then the tissues especially kidney, heart and brain would have ischemia and lot of problems. See pulmonary specialist. ...Read more

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I'm considering climbing everest without oxygen, and training by sleeping and running in an altitude tent which will lower my blood 02 sat. Levels to ~70%. Can I do both without brain damage?

I'm considering climbing everest without oxygen, and training by sleeping and running in an altitude tent which will lower my blood 02 sat. Levels to ~70%. Can I do both without brain damage?

No guarantees.: People have different susceptibilities to hypoxia depending on many factors including age, physical fitness, and health status. Also, the ability of the brain to withstand hypoxia is time dependent, so time at the summit will be critical. ...Read more

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What does it mean if your blood oxygen level suddenly drops to 60%?

What does it mean if your blood oxygen level suddenly drops to 60%?

Means Hypoxemia: It means there is low oxygen level in your arterial blood and you need to follow up with your doctor or pulmonologist to find the cause and get it corrected.It is an emergency situation and if you can not get the doctors go to er asap. ...Read more

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Please tell me what can cause low oxygen level in the blood ?

Please tell me what can cause low oxygen level in the blood ?

Hypoxia: Anything that decreases o2 diffusibility or increases o2 consumption. These will include copd, pulmonary fibrosis and interstitial lung diseases, asthma exacerbation due to decreased lung volume same as in lung resection, pe, later part of chf, sepsis. ...Read more

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Might i increase my oxygen level in my blood by exercising even when I have anaemia?

Anemia means: Low hemoglobin, low oxygen carrrying capacity. So, higher fio2 or exercise could increase dissolved o2, without increasing adequate delivery to your organs...If not, we would have no need for blood. ...Read more

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Low blood oxygen levels, at what number would be low enough to cause a person to fall to the floor and have a blackout?

Low blood oxygen levels, at what number would be low enough to cause a person to fall to the floor and have a blackout?

Depends: Its the rate of fall thats more important than the actual number. When the partial pressure of oxygen falls below 55 or 88% hemoglobin saturation the delivery of oxygen to our organs begins to decrease. If your organs, like the heart , is already damaged this drop can be very dangerous. If the organs are healthy they can tolerate this drop in oxygen levels for several minutes, sometimes even longe. ...Read more

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Extremity (Definition)

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