Temperature curves - a graphical representation of temperature fluctuations in everyday measurement. The temperature curves give a visual representation of the nature of the fever (see), often have a significant diagnostic and prognostic significance.
Types of curves allow us to distinguish the following types of fever.
1. With constant febris continua, body temperature is usually high, within 39 °, kept for several days or weeks with fluctuations within 1 °. It occurs in acute infectious diseases: typhus , croupous pneumonia, etc. (Fig. 1).
2. Relaxing or remittent febris (febris remittens) is characterized by significant daily fluctuations in body temperature (up to 2 ° and more), occurs with purulent diseases (Fig. 2).
3. Intermittent or intermittent febris (febris intermittens) is characterized by a sharp rise in body temperature to 39-40 ° and more and a decline in a short time to normal and even subnormal figures; After 1-2-3 days, the same rise and fall are repeated. Characteristic for malaria (Figure 3).
4. Fever (febris hectica) is characterized by large daily fluctuations in body temperature (above 3 ° C) and a sharp drop in its temperature to normal and subnormal digits, with temperature fluctuations greater than with remittent fever; is observed in septic conditions and severe forms of tuberculosis (Figure 4).
5. Recurrent fever (febris recurrens). The body temperature rises immediately to high figures, keeps at these values for several days, then decreases to normal. After a while the fever returns and again gives way to remission (there are several febrile attacks, up to 4-5). This type of fever is characteristic for some spirochaetoses ( recurrent typhus , etc.) (Figure 5).
6. Wavy fever (febris undulans). Gradual day-to-day rise in temperature with a similar nature of decline. There can be several waves of rise and fall of temperature, different from recurrent fever by gradual increase and fall of temperature. It occurs in brucellosis and some other diseases (Figure 6).
7. Perverted fever (febris in versa). Morning temperature is higher than evening, occurs with tuberculosis, prolonged sepsis , is prognostically unfavorable.
8. Wrong fever occurs most often. Daily fluctuations in body temperature are varied, duration is not determined. It is observed in rheumatism , pneumonia, dysentery, influenza (Figure 7).The
The temperature curves distinguish 3 periods of fever.
1. The initial period, or the stage of the rise in temperature (stadium incrementi). Depending on the nature of the disease, this period can be very short and measured by hours, usually accompanied by chills (for example, with malaria, croupous pneumonia ), or stretched for a long period of up to several days (for example, with typhoid fever).
2. Stage of fever (fastigium or acme). It lasts from several hours to many days.
3. The temperature reduction stage. A rapid drop in temperature is called a crisis (malaria, croupous pneumonia, typhus, Fig. 8); a gradual decrease is called lysis ( typhoid fever , etc., Fig. 9).
The main temperature curve is the daily determination in the morning after waking up rectal temperature during the menstrual cycle, in the first half of which the temperature fluctuates around low values. In the middle of the cycle, it rises by 0,6-0,8 ° due to ovulation, then it is held at a relatively high level, and falls sharply 1-2 days before the onset of menstruation.