Although the ph of blood ranges from 735 745 the ph of other body fluids is different. A low pleural fluid ph implies a high metabolic activity in the pleural space.
Validating The Performance Of Body Fluid Specimens Print
Influences the ph measurement of body fluids. This highly acidic fluid breaks down food and allows digestion to continue. Ph indicates the level of h ions where low ph indicates too many h ions and high ph indicates too many. A variety of disease processes can alter ph values. Reference values describes reference intervals and additional information for interpretation of test results. The ph value is a measure of hydrogen ion concentration. This near neutral level prevents tissue damage that may be caused by levels at either end of the ph scale.
Proton pumps that regulate the hydrogen ions in the stomach keep the ph between 15 and 35. 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. Saliva blood and spinal fluid all have a ph of about 74. Determining the ph value of a body fluid may help characterize the nature of the fluid. 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. 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. 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.
Gallery of Influences The Ph Measurement Of Body Fluids
