Dehydration fever

Introduction Dehydration heat refers to the phenomenon that the body (especially children) after the severe dehydration, due to the evaporation of water from the skin, is affected by the heat dissipation of the body, resulting in an increase in body temperature. When the room temperature is too high, the heat dissipation through the skin is increased. If the water in the body is insufficient at this time, the blood is concentrated, and the dehydration heat of the newborn is easily caused. The sweat glands are not fully developed, and the heat in the body cannot be removed by sweating, mainly relying on physical convection to dissipate heat. It is best to go to the hospital at 38.2 degrees or above. Go to the hospital for timely blood tests, chest radiographs, routine examinations, etc., and develop reasonable treatment measures based on the results of the examination.

Cause

When the room temperature is too high, the heat dissipation through the skin is increased. If the water in the body is insufficient at this time, the blood is concentrated, and the dehydration heat of the newborn is easily caused.

Internal factors

1. The development of the nervous system is not yet mature.

2. The development of the body temperature regulation center is not perfect.

3, sweat glands are not fully developed, can not take away the heat of the body through sweating, mainly rely on physical convection heat.

External factor

1. In the hot summer.

2. The indoor temperature is too high.

3, small infants and young children are wrapped very tight, the body's heat can not be emitted.

4. No enough water is added.

an examination

Related inspection

Circulating plasma volume, whole blood lead, human body trace element detection, blood routine cholera vibrio detection

Diagnosis of dehydration fever: When the indoor temperature is too high, the water evaporated by the newborn's skin increases, the breast milk is insufficiently ingested, and the blood is concentrated. The body temperature can rise to 37.8-38.2 degrees in a short period of time, and there are no other symptoms.

Differential diagnosis

Differential diagnosis of dehydration heat:

Sustained fever: The normal body temperature of a person is about 36.5-37°, and if it is higher than 37.2°, it is called fever. When people can't maintain normal body temperature, many physiological functions will be impeded. Symptoms of neonatal Coxsackie virus: temperature over 38. 5 ° C, mental wilting or irritability, persistent fever, shortness of breath, general weakness, rapid heartbeat, etc. Increased vomiting, even vomiting or ejaculation. Muscle twitching or neck and limb stiffness, confusion or coma.

Fever in children: Fever is a very common symptom in infants and young children. Many diseases show fever at the beginning. In daily life, we often see some parents touch the child's head with their hands, touch the child's palm, feel the skin is hot, and think that the child has a fever. Some parents believe that as long as the child's temperature exceeds 37 ° C is sick. In fact, this understanding is not entirely correct.

Infectious fever: various infectious diseases such as bacteria, viruses, fungi, spirochetes, malaria parasites, etc. act on the body temperature regulation center, body temperature central dysfunction or excessive heat production caused by various causes, heat dissipation is reduced, resulting in an increase in body temperature beyond normal The scope of the situation. The white blood cell count is higher than 1.2x109/L or lower than 0.5109/L.

Unexplained fever: The concept of generalized unexplained fever refers to all fevers of unknown origin. However, in the clinic, the narrow concept of fever is also adopted, that is, fever of unknown cause. The fever lasted for more than 3 weeks, the body temperature was above 38.5 °C, and the diagnosis was not confirmed by detailed medical history, physical examination and routine laboratory tests.

Central fever: refers to fever caused by abnormalities in the body temperature regulation center caused by central nervous system diseases. The fever caused by systemic or local inflammation should be strictly excluded before diagnosis, and other causes of fever should be excluded. Most cases of intracranial disease with fever are critical cases, most of which are caused by intracranial inflammation, intrapulmonary infection, and urinary tract infection. For the unexplained increase in moderate body temperature, the source of infection or the cause of infection cannot be found at one time, and it cannot be easily considered as central fever. The cause of systemic or local infection should be repeatedly searched for, and attention should be paid to the cause of drug fever and other fevers.

Persistent fever: When the mouth temperature is higher than 37.3 ° C or the anus temperature is higher than 37.6 ° C, the change in one day exceeds 1.2 ° C, which is called fever. According to the level of fever, it can be divided into the following clinical classifications: low heat 37.4 ° C ~ 38 ° C moderate heat 38.1 ° C ~ 39 ° C high heat 39.1 ° C ~ 41 ° C ultra high heat 41 ° C or more, lasting more than 4 weeks, for continuous fever .

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.