The other way of seeing this is studying directed typically to observable body processes rather than studying the overall internal state of the person as manifested in how he said he felt. Such studies disclosed among other things that oxygen and glucose are utilized heavily before a subject ends up being fatigued. On the contrary, thus, fatigue came to mean for some investigators came to mean a bodily state in which metabolic wastes are present in the tissues in a high concentration.
All such studies clearly revealed what happens when an individual exerts himself and disclosed evidences of energy conversion and how it is related to work performance. Fatigue, however, has an established component of subjective feeling. In fact, many cases of fatigue represented by symptoms arise suddenly and disappear suddenly, and more interestingly, the onset, duration, natural history, and termination of fatigue symptoms appear to have little relation to exertion or work.
No wonder when fatigue arises in nonexertional situations, even the most experienced clinical practitioners are tempted simply to mark it as psychological or motivational. There is a paucity of research into fatigue as descriptive as the person himself and of the full range of demands he has to meet and many of these demands, both physiological and psychological those lie outside the simple energy requirements of more-or-less arduous work. Humankind is capable of responding to any situation in more than one ways and at more than one ways of behavioral complexity.
The most readily observable ways are grossly physical and chemical, but these essentially are more intricate in that they actually represent sensory activity and perceptive activity. Thus to understand fatigue better and to be able to reach a consensus, it is very important to reach a conceptual harmony about the true nature of fatigue so that clinical decisions can better be made with better interpretation of findings in a subject presenting with fatigue.
The practicing nurse will then be able to manage the cases of fatigue better. This writing, therefore, presents a conceptual analysis of the topic of fatigue. Fatigue is a significant problem in clinical practice. This can appear to be a diagnostic riddle and management challenge in clinical practice. Although there are well-accepted operational definitions, all these definitions rely on subjective reports, and there are usually no objective diagnostic findings pertaining to fatigue per se.
Due to the diagnostic dilemma, the best suitable clinically pertinent definition perhaps is a syndrome of severely disabling physical and mental fatigue. This is difficult to quantify owing to the lack of validated diagnostic tests. In this conceptual analysis, this writer intends to evaluate best available evidence of detecting and managing disability in persons suffering from fatigue (Ross, D. S. et al. , 2004).