Top
10
Doctor insights on: Low Blood Oxygen Level

Share
1

1
Are low blood oxygen levels normal?

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

Dr. Scott Bolhack
3,058 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


3

3
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

See 1 more doctor answer
4

4
When does low blood oxygen levels result in a coma? (I know it is under 74 because I was still sort of awake then although I suspect not much under.)

When does low blood oxygen levels result in a coma? (I know it is under 74 because I was still sort of awake then although I suspect not much under.)

Well this varies: This varies a bit from person to person, so there is not really a number. It sounds like you are talking about the pulse oximetry reading, right? This is not used to generate concern about a coma. The pulse ox reading varies and is somewhat inaccurate. For most people, having insufficient oxygen for over 5 minutes results in brain damage, which may cause a coma. ...Read more

5

5
Iscrmic small blood vessel disease found on my brain mri, could this be connected to me having low blood oxygen levels, with passing out?

Iscrmic small blood vessel disease found on my brain mri, could this be connected to me having low blood oxygen levels, with passing out?

Too many issues here: U need to return to whomever ordered your mri, etc & get all of your issues addressed. U have a cute name, made me smile with your good sense of humor. See our website for help: www.Thepmc.Org. Hrs, md, facc. ...Read more

6

6
What is normal levels of oxygen in the blood? What is considered low and what is considered dangerous? Is levels in the 80s ok?

What is normal levels of oxygen in the blood? What is considered low and what is considered dangerous? Is levels in the 80s ok?

Oxygen level....: The oxygen saturation, or pulse oximetry, should be in the 90's normally. Any value of less than 88% on room air qualifies a patient for supplemental oxygen therapy. So, an oxygen saturation in the 80s is not normal. Your doctor will need to find out why your oxygen level is low and provide treatment. ...Read more

See 2 more doctor answers
7

7
What is considered too low for oxygen levels in the blood?

What is considered too low for oxygen levels in the blood?

Hypoxemia: Oxygen level in the blood should be >90 mmhg, it gets slightly lower with advancing age, any level lower than expected should be investigated. ...Read more

8

8
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

10

10
What is a low oxygen level in the blood considered?

What is a low oxygen level in the blood considered?

Sats <90%: Oximeter showing <90% or more appropriately pao2 <58 is considered hypoxia and need for o2 supplemental oxygen will be needed. ...Read more