Measurement of pleural fluid ph is advocated in the literature and in management guidelines from professional societies including the american and british thoracic societies 3 811 as part of first line pleural fluid analysis. This is because the negative temperature coefficient of the ph of blood almost cancels out the positive coefficient of the emf ph relationship of this particular cell system.
Water And Hydration Physiological Basis In Adults
Influences the ph measurement of body fluids. The pleural fluid ph was determined within 20 min after being collected anaerobically by a blood gas machine ciba corning model 288 ph meter corning ph meter 610a and ph indicator strip. The ph value is a measure of hydrogen ion concentration. A variety of disease processes can alter ph values. Ph indicates the level of h ions where low ph indicates too many h ions and high ph indicates too many. Determining the ph value of a body fluid may help characterize the nature of the fluid. Reference values describes reference intervals and additional information for interpretation of test results.
This near neutral level prevents tissue damage that may be caused by levels at either end of the ph scale. A low pleural fluid ph implies a high metabolic activity in the pleural space. This highly acidic fluid breaks down food and allows digestion to continue. Although the ph of blood ranges from 735 745 the ph of other body fluids is different. Proton pumps that regulate the hydrogen ions in the stomach keep the ph between 15 and 35. May include intervals based on age and sex when appropriate.
When blood is introduced however the time taken to reach a steady reading is less about li2 minutes fig. Saliva blood and spinal fluid all have a ph of about 74.
Gallery of Influences The Ph Measurement Of Body Fluids
