Oxygen contentOxygen dissociation curveCarbon monoxideOxygen cascadeAlveolar gas equationA-a) oxygen gradientThe partial pressures at the various levels of the oxygen cascade are described here. Emphasis is placed in the application of the Alveolar Gas Equation in this chapter. Hopefully readers will ...
The analysis of oxygen transport throughout the 3-D model is based on the diffusion law in the steady state. The consumption rate of oxygen in the model is represented as a dynamic state by a Michaelis-Menten equation. Due to the existence of complex and unparallel structure of segments in...
Of these three values, PaO2, oroxygen pressure, is the least helpful to answer the question about oxygen adequacy in the blood. The other two values --oxygen saturationandoxygen content-- are more useful for this purpose. I will briefly define these three terms and then present a more detai...
Oxygen delivery (DO2) depends on blood flow and oxygen content. The total oxygen content of the blood (hemoglobin bound and dissolved) can be calculated based on the hemoglobin (Hb) concentration (g/dL), SaO2, and partial pressure of oxygen (PaO2; mm Hg) in the arterial blood ([1.36 ...
There is a significant decrease in cerebral blood flow in the transition from fetus to neonate but increased blood oxygen content maintains oxygen delivery at the prepartum level. Postnatally there is a 25% increase in brain weight and a comparable increase in blood flow with all of the ...
Bronchopulmonary dysplasia was defined as need for supplemental oxygen (FiO2 >0.30) at an age corresponding to 36 gestational weeks. 24-hour ambulatory blood pressure measurement 24-hour ABPM was performed according to clinical routine. In short, systolic, diastolic, and mean arterial blood ...
Hemoglobin may sound familiar to you – something about oxygen transportation, right? Hemoglobin A1c (HbA1c) is quite close to what you remember from your biology classes. Although it sounds like the name of a robot, it is actually a special form of hemoglobin where the molecule has a partic...
[45,46]. We have decreased the reduction temperature from 90 °C to 70 °C to avoid abundant reduction of oxygen functional groups at the surface of GO, which is needed for further modification of GO with drugs and other biomolecules. A two-hour ultrasonication of GO flakes was performed ...
Blood delivers oxygen and nutrients to organs and tissues, removes waste, helps fight infections and heal from injuries, transports messages with the transport of hormones and the signaling of tissue damage, regulates core body temperature, etc. The average adult has about 5 L of blood circulating...
In some cases, it may be appropriate to monitorarterial blood gasesto ensure that the subject is adequately ventilated.Blood gas analysisprovides measures of not only the oxygen and carbon dioxide content of the blood, but also its pH, all of which may affect cerebral perfusion. Blood gas anal...