临床危急值（Clinical critical value）.docVIP

临床危急值（Clinical critical value） White blood cell count: Reference value: (4~10) * 109/L Determine the level of clinical significance and measures: 0.5 x 109/L lower than this value, the patient is highly susceptible to infection, should take appropriate preventive treatment and prevention of infection measures. 3 x 109/L lower than this value for neutropenia, should be made for other tests, such as white blood cell count, observation of peripheral blood smear, etc., and should ask the history of medication. 11 x 109/L is higher than this value for leukocytosis. At this point, the white blood cell count helps to analyze the causes and types of infection and, if necessary, to find the source of infection. 30 x 109/L is higher than this value, suggesting that it may be leukemia. White blood cell classification should be carried out, peripheral blood smear and bone marrow examination should be observed. Two, hemoglobin (HGB): Reference value: 120 to 160g/L for adult males 110 to 150g/L for adult women Determine the level of clinical significance and measures: 45g/L below this value should be transfused, but the patients clinical condition should be taken into consideration. For patients with congestive heart failure, however, blood transfusions should not be applied. 95g/L less than this value, should determine the causes of anemia, the type according to the number of parameters of RBC, based on blood smears of red blood cell parameters and reticulocyte count is decreased, serum iron, folic acid and B12 concentration, to study the changes of Hb after treatment. Male 180g/L This value should be higher than the female 170g/L other tests such as white blood cell count, platelet count, neutrophil, serum alkaline phosphatase, B12 and unsaturated B12 binding capacity, oxygen partial pressure on the comprehensive evaluation, symptomatic patients should be treated by bloodletting. When 230g/LHb exceeds this value, both true and secondary polycythemia must be treated immediately.