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【答】1.血象:白细胞计数:减少或正常,多数病人减少至5×10~8/L(5000/mm~8)以下。嗜酸性粒细胞:减少或消失,一般不高于0.02,高于0.05时可以排除伤寒。 2.细菌培养:血培养,在第1周阳性率最高,可达85%;第2～3周粪便培养阳性率可达80%;第3—4周尿培养阳性率可达20%;骨髓培养的阳性率高于血培养,在第3～4周培养阳性率最高,可达87%。 3.肥达氏反应:自第2周以后阳性率迅速增加,第4周为90%,病愈后阳性反应可持续数月。故应反复做该检查,每扁1次,以第4周检查为最重要。阳性:
【Answer】 1. blood: white blood cell count: reduced or normal, most patients reduced to 5 × 10 ~ 8 / L (5000 / mm ~ 8) the following. Eosinophils: reduce or disappear, generally not higher than 0.02, higher than 0.05 can be ruled out typhoid fever. 2. Bacterial culture: blood culture, the highest positive rate in the first week, up to 85%; the first 2-3 weeks stool culture positive rate of up to 80%; the first 3-4 weeks urine culture positive rate of up to 20%; bone marrow The positive rate of culture was higher than that of blood culture, and the highest positive rate of culture was reached in 3 ~ 4 weeks, up to 87%. 3. Widal response: Since the first 2 weeks after the positive rate increased rapidly, the first 4 weeks was 90%, after the recovery of the positive symptoms of sustainable months. It should be repeated to do the inspection, once per flat, with the first 4 weeks of inspection as the most important. Positive