During and after chemotherapy it is possible to replace the red cells and platelets by cells donated by healthy volunteers in the form of blood transfusions. Severe anemia (a relative term, not well defined by scientific studies) or thrombocytopenia can be life-threatening in extreme cases. Most doctors specializing in the care of patients with blood cancers believe that varying degrees of replacement by prophylactic red cell transfusion represent a good practice to prevent complications of anemia, such as fatigue, weakness, shortness of breath, or in extreme cases, heart attack or stroke. Similarly, most physicians advocate giving prophylactic platelet transfusions to reduce the likelihood of bleeding.
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Such As Easy Fatigue 如易疲劳
One is that obese people visit physicians earlier than others because they develop symptoms, such as fatigue and breathing problems.
其中之一是，肥胖的人在治疗上开始得比较早，因为肥胖症致使他们出现体虚和呼吸困难等症状。
Despite a dizzying array of high-tech medical tests, the reality is that many symptoms, such as fatigue or headaches, are never explained.
尽管做了一连串让人眼花缭乱的高科技医学检测，但现实是许多症状，如疲惫、头疼，都无从解释。
It is more likely that workload will be a contributing factor along with other factors, such as fatigue and false expectations or assumptions.
即工作压力不太可能单独使人产生失误，而经常是结合其他因素，如疲劳、错误判断等。
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