(ANA) and this could lead to a misdiagnosis of autoimmune disease, mainly systemic sclerosis.A 47-year-old man presented with color changes on fingertips consistent with biphasic Raynaud's phenomenon; an antinuclear antibody test was positive (at 1:320 titers in a speckled pattern) with normal ...
问题分析：你好，从描述来看，目前你的ANA抗体检测是阳性的，虽然滴度不是很高，所以是需要做进一步的检查...
IIF on HEp-2 cells for ANA remains the "gold standard" but it has very low positive predictive value. Up to 20% of serum samples from HI have been reported to have a positive ANA IIF test, the majority of them due to the presence of anti-dense fine speckled 70 (anti-DFS70) ...
ANA titers were assessed in a range from 1:40 to 1:640, with increments of twofold. The ANA patterns were analyzed according to the International Consensus on ANA patterns (ICAP) and included the speckled pattern (fine, AC-4 or coarse, AC-5), which is the standard in ANA serology ...