SaO2 is an invasive measure of the % of Oxyhemoglobin(oxygen saturated hemoglobin) in the blood using lab tests on arterial blood. SpO2 noninvasive measure the % of saturated hemoglobin in the capillary bed and does not identify what is saturating the hemaglobin. ie: carboxyhemoglobin, methemoglobin, ect.

Jul 10, 2008 · There is a relationship between the two numbers, which is described in the oxyhemoglobin dissociation curve. (yes, THAT oxyhemoglobin dissociation curve.) Without getting too far into it, roughly speaking all other things being equal PaO2 and SaO2 relate as follows: SaO2 50% = Pa02 26.6 mmHg (aka P50); 70=40; 90=60; 95=80; 99=100

Oct 22, 2014 · SaO2 is directly related Hgb and how saturated the blood is with O2 molecules. SpO2 is the measurement of dissolved O2 molecules in the blood/plasma and solely dependent on lung functioning. Therefore, a patient can have an adequate SaO2 (saturation of O2 on Hgb) but in general the lung functions can be dec. causing a low PaO2.

Sep 12, 2012 · SaO2 from ABGs are usually calculated not measured from our measured PaO2 ( a measured SaO2 would come out low). However, a PaO2 will come out normal with Methemoglobinemia, beause it is normal. The issue with Methemoglobinemia is not the amount of O2 but the change in our hemoglobins affinity for O2.

Apr 10, 2009 · In the discussion, they state "it describes the relationship between the sat of Hb and the patrial pressure of (PO2) in the blood. Due to the shape of the curve, a small drop in PaO2 below 8kPa will cause a marked fall in SaO2." In the same paragraph, they made reference to both PO2 and PaO2. Thank you for your help.

My instructors lecture notes state that SpO2 refers to pulse oximetry, and that SaO2 refers to peripheral capillary saturation. It also says that PaO2 is an inv...

Jan 11, 2006 · I've spent the last few nights pondering this question ... let's use a "hypothetical" patient: Primip, induction (cytotec X2 then Pitocin), Pit is up to 6mu, FHR baseline 140-150bpm with average variability and accels up to 175, UC's q 3-6 minutes, 60-90 seconds long.

Nov 30, 2021 · Lots of things can cause inaccurate readings. Certainly poor perfusion. Also nail polish, artificial nails, skin that is thicker than ”normal”, dark skin color, a pulse oximeter probe that fits too tight and constricts flow, or a probe with loose fit (or forcing a hinged probe onto a very big big toe so that the probe looks like an open jaw instead of both the light-emitting diod and the ...

Oct 9, 2009 · 6. You are assigned to take care of m.n. Her VS are 148/82, 118, 24, 101F Sao2 is 88%. Based on these numbers, what do you think is going on with M.N. and Why? 7. You know M.n. is at risk for post operative atelectasis. What is atelectasis and why is M.N. at risk?

Feb 28, 2014 · Her organs can be perfused with blood lacking oxygen....you want the O2 sat >90% to endure proper oxygenation of the vital organs and to prevent injury to vital organs from the hypoxia.