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pale, cooling the surface level of the skin reflexively causes tremor, a feeling of cold – chills. There is an inhibition of perspiration and evaporation. Patients have frequent breathing and heartbeat. Increasing the temperature of 1 °C leads to the increasing of the pulse rate by 8–10 beats per minute, and breathing by 4 respiratory movements per minute. Aid. It is necessary to provide the patient by quiet, to put him to bed, to cover him well with a blanket, to put heater to his feet, to give him hot tea. Medical therapy should be due to the prescription of a doctor. It is important to warm the patient to eliminate vascular spasm, tremor. Stage II – the stage of constantly elevated temperature. It is characterized by the preferential balance of heat production and heat transfer processes. At this stage, the chills and muscle tremor became less, sweating increases, the spasm of the skin vessels decreases and disappears, so that the paleness of the skin is replaced by their hyperemia. During a fever, toxic products are absorbed into the blood, so the nervous, cardiovascular, digestive, excretory systems suffer. Patients has tachycardia, tachypnoe, sometimes there is a decrease of blood pressure (BP). At the height of fever, in some patients may develop delusions and hallucinations, and in young children – cramps, vomiting. Aid. Athightemperature,theriskofcramps,delirium,hallucinationsindividual nursing unit should be organized.At the same time, the nurse constantly monitors the condition and behavior of the patient, counts the pulse, BP, the frequency of respiratory movements, measures the temperature every 2–3 hours, conducts prevention of bedsores, makes enemas with constipation. At this stage, the patient should be “cooled”, he should be dressed in something light, but not undressed, it can not be wrapped. He receives cool, vitaminized drink. Feeding of patients is carried out 5–6 times a day, in small portions. Stage III  – the stage of falling temperature. It is characterized by a dec- reasing of heat production and increasing of heat transfer (peripheral blood vessels expand, sweating increases significantly, evaporation increases due to an increase in breathing rate) due to the termination of the action of pyrogenes on the center of heat regulation. The gradual decreasing of body temperature for several days is called lysis (lytic decreasing), quick drop of the body temperature for a few hours is called a crisis (critical decrease). The crisis can be complicated by acute vascular insufficiency-collapse. It manifests itself as a severe weakness, profuse sweating, pale and cyanosis of