Diabetes mellitus is a chronic disease which induces to the disease of big and small blood vessels. In the PGT thereare often acute metabolic complications of diabetes mellitus.These complications induce to the higher mortality and morbidity of seniors. The two significant acute complications of diabetes mellitus, which are connect with higher mortality, are the DKA and HHS. The admission to the diagnosis and therapy of these complications is similar, therefore we can talk about it together. In special literature is the mortality 10-50%- depending of the complications. The problem of
HHS is in the seniors always actual, because in this age is statistic advanced appearance of the PGT and the showings of diabetes mellitus are lessmarkedly. The seniors comes to the hospital usually later and than the treatment is challenge
for the time and forthe many.