It depends on the individual. Respiratory distress is anything below 95%, but some individuals with heart defects live and breathe well below the 95% percentile. Some, in the low 70's or 80's. However this isn't a sustainable amount for a lifetime.
I will guess you are talking about measuring oxygen saturation with an oximeter? This would be O2 sat or sats, as in saturation. Many, many people do say O2 stats. As is statistics, or possibly status. It is a single number, therefore it is not ever statistics, a plural. And status isn't really shortened that way, and a single O sat does not equate a status. Now if you are talking about ABGs... Pet peeve of mine. :) Thanks for asking
critical water saturation (sometimes called Irreducible water saturation) defines the maximum water saturation that a formation with a given permeability and porosity can retain without producing water. This water, although present, is held in place by capillary forces and will not flow. Critical water saturations are usually determined through special core analysis.The critical water value should be compared to the reservoir's in-place water saturation calculated from downhole electric logs. If the in-place water saturation does not exceed the critical value, then the well will produce only hydrocarbons. These saturation comparisons are particularly important in low permeability reservoirs, where critical water saturation can exceed 60% while still producing only hydrocarbons.
a and c
critical reading
In medicine it refers to the percent O2 attached to (arterial) hemoglobin as a comparison to the maximum that could be attached. In a healthy person the blood leaving the lungs (and/or the left ventricle) should be 100% (or not less than 99%).
CRITICAL
It means that you think hard to succeed reading
Yes, oxygen saturation (O2 saturation) can drop to 30 percent, but this level is critically low and usually indicates severe hypoxemia, which can be life-threatening. Such a drop may occur in conditions like severe respiratory failure, significant lung disease, or during a medical emergency. Immediate medical intervention is necessary to address the underlying cause and restore adequate oxygen levels in the body.
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Quad-Entry diary
The front sensor is reading wether your air/fuel mixture is correct and computer makes adjustments according to a rich or lean reading from o2 sensor. The rear sensor is reading what comes out from the cat/converter to see if converter is doing is job in removing pollutants.