目前,对急性病毒性肝炎的血清学诊断都认为比较容易,但因HBsAg单项试验诊断急性乙型肝炎尚存在严重的缺点,它可能导致假阴性或假阳性的结果。HBsAg假阴性结果的出现是由于有些病人HBsAg清除较早,在他们发生症状就医时,HBsAg已转阴。在这种情况下,只有检测抗-HAs或抗-RBc才能作出诊断。因其在体内存在的时间较长,它们的出现可提示但不能判明急性乙型肝炎的诊断。虽然在急性期和恢复期之间,无论那种血清抗体滴 At present, the serological diagnosis of acute viral hepatitis is considered relatively easy, but the single HBsAg diagnosis of acute hepatitis B there are serious shortcomings, it may lead to false-negative or false-positive results. The occurrence of HBsAg false-negative results is due to the earlier clearance of HBsAg in some patients and the loss of HBsAg when they have symptoms. In this case, diagnosis can only be made by detecting anti-HAs or anti-RBc. Because of their longer presence in the body, their presence can be a hint but not a diagnosis of acute hepatitis B. Although between the acute and convalescent periods, no matter what kind of serum antibody drops