Charge maintained by chloride entering RBC (chloride shift) Hydrogen ions combine with haemoglobin to form haemoglobonic acid. Hydrogencarbonate ions Releasing oxygen The partial pressure of oxygen (also called oxygen tension) of respiring tissues is lower than the lungs.
Screening is a process for evaluating the possible presence of a particular problem. The outcome is normally a simple yes or no. Assessment is a process for defining the nature of that problem, determining a diagnosis, and developing specific treatment recommendations for addressing the problem or diagnosis.
Baseline assessment: What purpose, and for whose benefit? Baseline assessment is well established, and generally regarded positively by teachers. However, it is used for different purposes, including identification of special educational needs and value added analyses of schools. The results of an evaluation of the national arrangements indicate variation in content and implementation of schemes.