Understanding a 38-degree fever

The number deserves more caution in a very young baby than in an otherwise well older child or adult. Breathing, wakefulness, hydration and other symptoms provide the clearest guide to whether home care is reasonable or medical assessment is needed.

Fever reflects a raised body temperature, commonly during an immune response to infection. It is a sign rather than a diagnosis. Acute bronchitis can present with fever and cough; COVID-19 may present with fever among other respiratory or general symptoms.

Check the display for Celsius and note the body site used. An oral, ear, forehead or underarm reading may not match exactly, and technique matters. If uncertain, follow the device instructions and take another reading with the same method after a short rest.

Let the person rest and provide water or other suitable fluids in frequent amounts. Dress them comfortably rather than bundling them up. Keep track of urine output and whether their energy, breathing or pain is improving as the illness develops.

A medicine for fever can be considered when aches or distress interfere with rest or drinking. Confirm that it is appropriate for the patient, especially with pregnancy, kidney or liver problems, stomach ulcers, dehydration or other medicines. Never exceed the package directions.

Seek emergency care for severe breathing difficulty, collapse, a convulsion, profound sleepiness, confusion, blue lips, a stiff neck or a rash that remains visible under pressure. A person who is rapidly worsening, unable to drink, barely urinating or experiencing severe pain also needs prompt assessment.

Arrange urgent assessment for a baby under three months whose temperature reaches 38°C. Lower your threshold for contacting a clinician when fever occurs during pregnancy, with a weakened immune system or alongside a major chronic illness. Medical review is appropriate if it continues without improvement or returns after settling.

Record the thermometer type, measurement site, timing and response to any medicine. Mention recent travel, animal exposure, skin changes and respiratory, digestive or urinary complaints. Ask which warning signs apply to the patient’s circumstances and when a follow-up temperature or examination would be useful.