Oligemia, caused by evaporation and sweating, may participate in worsening of cardiovasculr functions. In intial stages of fever, up to its culmination, the frequency of breathing increases. During the fever, or after its finish, pathological components- proteins, hyaline casts, and creatinine are present in the urine. Probably, this is caused by the direct damage to the kidneys by the fever itself. Experimentally it was observed that warm water bath of 40 lasting for several hours doesn'cause similar changes in urine and general condition as fever.
Fever has unfavourable influence on the function of the digestive tract.
The defect in secretion of digestive juices is observed. This is associated with motor disorder and the disorder of absorption. Such changed functions of GIT may cause the constipation with catastrophical effects especially in old people. Hypoptialism is the part of decreased secretory function of the gastrointestinal tract. At hypoptialism, inflammation of buccal mucosa and the tongue is present as well.