Three Factors of Blood Gas Analyzer to Detect Blood Gas PH Values

Combined with the advantages of the electrolyte analyzer, blood gas analyzers(developed into a blood gas electrolyte analyzer) are medical devices used in clinical blood gas acid-base balance . Obtained after the detection of the blood gas analyzer, blood gas acid-base balance mainly by three factors, as follows:
Blood gas analysis detected bleeding gas acid-base balance is also the body a lot of balance one of its core is [H +] concentration of pH value, the normal value of 7.4 (7.36-7.44). It is mainly affected by three aspects of adjustment: kidneys regulate the breathing regulator and the body buffer system.
Kidneys regulate
The kidneys regulate through renal excretion and absorption of H + and HCO3-to regulate the H + excess is excreted through the urine, and H + is less row or even absorption from the urine back in order to maintain normal blood pH value.
Respiratory regulation
Respiratory regulation through the breath exhaled CO2 to regulate, CO2 too much then exhaled, too little breath less.
Buffer system in the body

Bicarbonate - carbonate buffering system
Phosphate buffer system
Protein buffer system is called a buffer system? As the name suggests is to play a buffer role in the system. Such as to make high-speed car suddenly stopped, which could make cars and car people can not afford, so a special device to let the car slow down to such a device could be called "buffer system". The body of [H +] concentration, if a sudden change quickly, then people will not stand, so you need appropriate to make it slow down. The basic principle is this: H + + HCO3-= of H2CO3 = H2O + CO2 [H +] [HCO3-] / [H2CO3] = Ka-(Ka is a constant, fixed under certain conditions, conditions such as temperature pressure etc.)
Blood gas analyzer measured by various indicators and their significance. Into acidosis and alkalosis, the pH changes, pH decreases acidosis and alkalosis, pH increases can be divided according to the primary cause of respiratory and metabolic. According to various indicators can be divided into respiratory and metabolic. Metabolic indicators: standard bicarbonate, buffer base, base excess, anion gap; breathing index: PCO2, actual bicarbonate.
Article : From Perlong medical (http://www.pl999.net/)
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