What to do if a baby has a fever of 39.3°C

Dec 26, 2024 Source: Cainiu Health

Dr. Zhou Xiaofeng

Introduction

In general, fever refers to an elevated body temperature. A baby's fever reaching 39.3°C may be related to factors such as bronchitis, pneumonia, meningitis, Kawasaki disease, or infectious mononucleosis, and timely relief through general treatment and medication is required. If the baby experiences any discomfort, it is recommended to seek medical attention promptly. It is important to note that the cause of the baby's fever should be identified promptly before implementing targeted treatment.

Generally speaking, fever refers to an elevated body temperature. A baby's fever reaching 39.3℃ may be associated with factors such as bronchitis, pneumonia, meningitis, Kawasaki disease, and infectious mononucleosis. Prompt relief through general treatment and medication is required. If discomfort occurs, timely medical attention is recommended. The detailed analysis is as follows:

1. Bronchitis

Bronchitis occurs due to low resistance in the baby's body, allowing pathogens to invade. If the causative agents are not treated promptly and repeatedly stimulate the body, high fever may develop. It is usually accompanied by symptoms such as coughing and runny nose. It is recommended to appropriately adjust the baby's clothing to avoid exposure to cold or excessive heat. Additionally, medications such as ribavirin granules, amoxicillin granules, and ibuprofen suspension should be used according to medical advice.

3. Pneumonia

Pneumonia is an inflammation of the lungs caused by infection with pathogens such as Staphylococcus aureus. If the inflammation is not promptly cleared, it may lead to persistent high fever. Symptoms may include rapid breathing and chest pain. Timely treatment under a doctor's guidance using medications such as cefixime granules, children's ibuprofen suppositories, and dextromethorphan hydrobromide syrup is recommended.

3. Meningitis

Meningitis is caused by viral or bacterial invasion of the meninges and spinal cord membranes. Inflammation of the brain tissue may spread throughout the body, causing sustained high fever. Symptoms may include headache and altered consciousness. After diagnosis, the baby's vital signs should be monitored regularly, and medications such as ganciclovir injection, mannitol injection, and clonazepam injection should be administered under the doctor's guidance.

4. Kawasaki Disease

Kawasaki disease is related to abnormal immunity. When the immune system attacks body tissues and causes inflammation, body temperature may rise above the normal range, often accompanied by symptoms such as red eyes and swollen lymph nodes. This condition can be treated with medications such as human immunoglobulin, aspirin powder, and prednisolone acetate injection, as advised by a doctor.

5. Infectious Mononucleosis

Infectious mononucleosis is usually caused by EB virus infection. When the number of monocytes continues to increase, body temperature also rises. Symptoms may include sore throat, swollen lymph nodes, and enlarged liver and spleen. This condition should be treated with medications such as recombinant human interferon α1b injection, intravenous immunoglobulin (pH4), and acyclovir injection, strictly following the doctor's instructions.

It is important to identify the cause of the baby's fever promptly and treat accordingly, avoiding self-medication. During treatment, the baby's body temperature should be measured regularly to monitor the control of the illness.

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