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Alveolar-arterial gradient - Wikipedia, the free encyclopedia
The Alveolar-arterial gradient (A-a gradient), is a measure of the difference between the alveolar concentration of oxygen and the arterial concentration of oxygen. ...
http://en.wikipedia.org/wiki/Alveolar-arterial_gradient
Alveolar-arterial Gradient
Calculate the Alveolar - arterial gradient given FiO2, PaCO2 and PaO2. ... A normal A-a gradient is less than 10 torr. The age (years) / 4 + 4 is another ...
http://www-users.med.cornell.edu/~spon/picu/calc/aagrad.htm
A-a gradient calculator (alveolar arterial gradient) - Lung ...
A-a gradient calculator (alveolar arterial gradient) ... A-a gradient (Alveolar to arterial gradient): Provides an assessment of alveolar-capillary gas exchange. ...
http://www.globalrph.com/aagradient.htm
Blood Gas Text
The Aa gradient is 8. (The barometric pressure in SLC is 647. ... What is the A-a gradient? It's the difference between the measured pressure of oxygen in the blood stream and ...
http://www.madsci.com/manu/gas_aa.htm
A-a O2 Gradient | MDCalc
A-a O2 Gradient = [ (FiO2) * (Atmospheric Pressure - H2O Pressure) - (PaCO2/0.8) ] - PaO2 ... The 5 Causes of Hypoxemia, #1-3 have an elevated A-a Gradient: ...
http://www.mdcalc.com/a-a-o2-gradient
A-a Gradient
A-a Gradient, Alveolar-Arterial Oxygen Tension Difference, PO2 difference, DO2
http://www.fpnotebook.com/Renal/Lab/AGrdnt.htm
BestBets: In Pulmonary Embolus is the Aa gradient a useful ...
In [a patient with a suspected PE] is [an abnormal aa gradient] a [reliable indicator of a PE] Clinical Scenario ... There were 499 who had an A-a gradient measured on room air. ...
http://www.bestbets.org/bets/bet.php?id=748
A-a Gradient
These are usually associated with alveolar membrane or interstitial disease. Hypoxiemia in the face of a normal A-a gradient implies hypoventilation ...
http://www.statref.com/MedCalc3000/AAGradient.htm
Blood Gas Text
A quick calculation of the Aa gradient tells you that this patient's "normal" oxygen is ... ( The arterial-alveolar gradient means that the lungs are normal, making the "abnormal" ...
http://www.madsci.com/manu/gas_gen.htm
MedCalc 3000 Medical Calculator
High A-a gradients are associated with oxygen transfer / gas exchange problems. ... The equation for expected A-a gradient assumes the patient is breathing room air; ...
http://medcalc3000.com/AAGradient.htm