Any body temperature above 102.5 degrees Fahrenheit is considered a high fever, says MedicaLook. Fevers that reach 107 F or higher are exceptionally dangerous, because the majority of humans cannot survive such high internal temperatures. The Mayo Clinic advises that adults should seek immediate medical attention for fevers of 103 F or higher.Know More
High fevers between 103 and 106 degrees F can cause serious side effects such as hallucinations, dehydration, confusion and convulsions, says the Mayo Clinic. Children with high fevers may experience seizures, though the Mayo Clinic notes that fever-induced seizures are rare. Milder side effects of fever include sweating, shivering, weakness and muscle aches. Adults should seek immediate medical attention if a fever is accompanied by severe physical side effects such as rashes, vomiting or seizures, or neurological side effects like severe mental confusion and sensory changes.
Infections are a common cause of fevers, and mild fevers usually are not dangerous on their own, explains WebMD. Treatment for fevers primarily involves treating the underlying issue that caused the fever. Over-the-counter acetaminophen, nonsteriodal anti-inflammatory drugs and naproxen also are used to treat fever. Fever becomes more dangerous when it results from hyperthermia or external factors such as heat stroke and medication side effects.Learn More
A high fever can cause a denaturation, or change in shape, of an enzyme, resulting in less activity for the enzyme to catalyze reactions in the body, according to the BBC. When there is elevated temperature in the body, the enzymes cannot carry out normal functions. The enzyme's activity gradually increases with a rise in temperature up to the limit of body temperature, and then diminishes at higher temperatures.Full Answer >
According to Mayo Clinic, any body temperature above 103 degrees Fahrenheit can be dangerous, and according to the National Institutes of Health, a dangerously low body temperature, otherwise known as hypothermia, occurs when the body temperature falls to 95 degrees Fahrenheit or below. The normal body temperature of a healthy human is approximately 98.6 degrees Fahrenheit (37 degrees Celsius), although the range of normal can differ by up to 1 degree above or below. Where the temperature is taken can also affect the reading.Full Answer >
A person whose body temperature is and exceeds 99 degrees Fahrenheit in the morning has fever. At any time of the day, a temperature in excess of 100 degrees Fahrenheit indicatesÂ a fever.Full Answer >
A high fever is a one that is higher than the normal range, but what constitutes a high fever varies with individuals, according to Mayo Clinic. Adults should consult a doctor if a fever lasts more than three days and is 103 degrees Fahrenheit or more.Full Answer >