Learn about fever in ICU patients

This is an automatically translated article.


Article written by MSc Nguyen Ngoc Quang - Department of Intensive Care - Vinmec Times City International Hospital

Fever is common in ICU (ICU) patients. The disease has many different causes and is sometimes difficult to diagnose. If the ICU patient has a fever, proper diagnosis and treatment of the cause is very important in improving the patient's mortality rate.

1. Definition


Normal body temperature: Regulated 36-37.5 degrees Celsius Normal temperature can increase or decrease by 0.5-1 degrees Celsius depending on body activity and circadian cycle, for example normal body temperature lower in the morning and highest in the evening. This rise in temperature is not called a fever What is called a fever According to the American College of Critical Care Medicine (ACCCM) and the Infectious Disease Society of America (IDSA) a fever is defined as when the body temperature is 38.3 degrees while the patient is sick. ICU stay May allow lower temperature considered febrile in immunocompromised patients

Sốt là khi nhiệt độ cơ thể ≥ 38.3 độ khi bệnh nhân đang nằm điều trị tại ICU
Sốt là khi nhiệt độ cơ thể ≥ 38.3 độ khi bệnh nhân đang nằm điều trị tại ICU

2. Common causes of fever in ICU patients


Due to acquired pathological causes, mainly due to infectious causes :
Ventilator-associated pneumonia: Leading cause of fever Catheter infection Infection of incisions and wounds Infection of urinary catheter Sinusitis Hemolysis due to blood transfusion Drug fever, usually ICU patients will be given a lot of drugs, maybe one of which has a reaction that causes fever for the patient. Fever due to intestinal ischemia Acute pancreatitis Extremity blockage Adrenal insufficiency Thyroid storm Due to non-pathological causes, usually from procedures and ICU environment
Hot due to poor bedding Due to heating lamps Air conditioning level of inactivity Catheter equipment in the body, even though it does not cause infection, can still cause fever Abdominal drainage Hemodialysis

Lọc máu có thể là một trong những nguyên nhân gây sốt ở bệnh nhân ICU
Lọc máu có thể là một trong những nguyên nhân gây sốt ở bệnh nhân ICU

Cardiopulmonary machine Ultrafiltration ECMO

3. Treatment


The treatment of fever in ICU patients must be based on the cause of the fever, which requires a lot of effort and time to confirm the diagnosis, greatly depends on the equipment and the doctor's expertise ICU.
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