职业病诊断中,职业史和不良劳动条件只是致病基础,必须查明肯定的临床病变才能诊断。由于很多职业病的临床表现没有特异性,因此作好鉴别诊断是正确诊断的前提。 鉴别有病或属正常范围与正常变异 职业病患者常常是在一群人的预防性体格检查中发现的,因此,职业病的鉴别诊断,首先要与生理性和正常范围内的变化、正常变异以及老年性退行性变化等相鉴别,有时相当困难,但却必须认真查明,以防滥诊。 Occupational disease diagnosis, occupational history and poor working conditions is only the basis of pathogenic, must identify the positive clinical lesions can be diagnosed. Because many clinical manifestations of occupational diseases are not specific, so make a differential diagnosis is the prerequisite for the correct diagnosis. Identification of sick or normal range and normal variation Occupational disease patients are often found in a group of people with preventive physical examination, therefore, the differential diagnosis of occupational diseases, first of all with physiological and normal range of changes, normal variation and senile Degenerative changes such as phase identification, sometimes very difficult, but it must be carefully identified to prevent misdiagnosis.