Пирексия (Pyrexia)

Pyrexia (or pyretic syndrome) is a medical term for an increase in body temperature above normal levels.

Pyrexia is often used as a synonym for fever, but this is not entirely accurate. Fever is a form of pyrexia, in which an increase in temperature is caused by an inflammatory process in the body.

Pyrexia can also occur for other reasons, for example:

1. In case of heat or sunstroke due to impaired thermoregulation

2. When taking certain medications or drugs

3. After traumatic brain injury

4. For diseases of the central nervous system

5. In the postoperative period

Thus, pyrexia is a general term for any increase in body temperature, while fever is one of its varieties associated with inflammation.

Pyrexia is a strong agitation, active behavior of the patient with a slight change in his condition in the direction of pathological, the psychopathological equivalent of a feverish state. It is characterized by psychomotor agitation, disinhibition of higher brain functions, autonomic disorders and affective disorders, and uncorrectable perceptual deceptions are often observed.

Symptoms of pyrexia. The severity of the disease is manifested by hyperemia of the skin of the face, upper extremities, hyperemia of the eyeballs, mouth, the appearance of salivation, and decreased pain sensitivity. Various types of thermal hallucinations are indicated: the perception of thermal energy from inside the body (in a direct projection), more often from the perception of heat with a feeling of coolness on the surface of the body, the perception of “heat stroke” on a limited surface of the skin or inside, an increase in air temperature around without visible sources of heat (discharges ), perception of painful heat strokes without the usual signs for all heat-emitting objects (light scattering, brightness, clarity).

The main symptoms are: excessive activity, disinhibition of higher mental functions, an abundance of errors in behavior, increased distractibility, violation of the rules of behavior, speech and motor disinhibition, euphoria or anger, aggressiveness, manic state, deterioration of memory and thinking abilities, changes in psychomotor tone, insomnia, critical changes in sexual function, a feeling of constant heaviness in the head, unquenchable thirst, unstable and profuse urination, urination disorder, frequent urge to go to the toilet, increased urination, diarrhea.