2009年4月10日 · PaO2 is partial pressure of oxygen dissolved in (arterial) blood. Partial pressure of a gas dissolved in a liquid depends on the qualities of the liquid and the concentration of the gas. This is where the dissociation curve comes in - its the relationship between the pp and total content of O2 in the blood.

2008年7月10日 · PaO2 describes the amount of oxygen dissolved in arterial blood plasma. The measurement is given as a pressure value (mmHg). The measurement is given as a pressure value (mmHg). There is a relationship between the two numbers, which is described in the oxyhemoglobin dissociation curve.

2014年10月22日 · A smoker could have an SpO2 of 98% and be complaining of shortness of breath. The PaO2 may also come back low. A co-oximeter might measure the SaO2 at 85% and 10 - 13% COHb. The patient could also have a low hemoglobin in combination with the COHb. I prefer to print out various calculations associated with the blood gas such as content and A-a.

Quick and dirty, your pao2 should be roughly 4-5x the % of oxygen you're breathing; normal pao2 is 80-100 if room air is around 20% oxygen. If you breathe 100% oxygen, your pao2 should measure around 400-500. If it doesn't, your lungs are doing a lousy job of gas exchange. Same with any other supplemental level.

2009年3月6日 · note: the pao2 is figured from the "alveolar gas equation"; whereas the pao2 is obtained from the patient's abg results *normal a-a gradient = 5-15mmhg or (age/4)+4 the a-a gradient looks @ the physiology of gas exchange across the alveolar-capillary membrane

2011年1月15日 · My med-surg book and other sources tell me that in pneumonia, initially, ABG values for both PaO2 and PaCO2 will be low, and later in the disease Pa02 will be low and PaO2 will be high. I've usually got a good handle on physiology, but this doesn't make any sense to me, sense O2 and CO2 are almost always inversely related.

2007年5月13日 · This is how I remember it, correct me anyone if I am wrong, PaO2 is related to oxegen in the tissues (perfusion) and SaO2 is the actual oxegen being carried in the red blood cells. These numbers are compared with Carbon dioxide levels and acid base levels, which will tell you accuratley how much Co2 they are releasing (or storing).

2014年5月13日 · Draw a graph where sats are on the vertical (left) axis and PaO2's are on the horizontal (bottom) axis. Draw little shaded band across the top at the 95%-100% sat areas. That's your normal saturation. Draw a few dots there indicating a line of PaO2's of 80-100, because those are normal PaO2's. Now draw a dot for SpO2 of 90 and PaO2 of about 75.

2012年3月19日 · low pco2 levels are a by product due to another source whether it is metabolic acidosis, as in the setting of diabetic ketoacidosis, to help off set the acidosis by hyperventilating to produce bicarbonate (very simply put) to compensate for the acidosis or in the setting someone is hyperventilating from anxiety groping the pco2 levels and ph causing a alkaloid state …

2007年4月28日 · I'm still in school but it's my understanding that it is critical if the PaO2 goes below 60. As for the Sp02, it should not be below 92% and there are sometimes orders to give O2 to keep above 92%.