The adult range for a low-grade fever is between 100 F to 101 F, according to eMedicineHealth. An intermediate grade fever is 102 F, while fevers ranging from 103 F to 104 F are considered high-grade. Fevers above 104 F ... More » Health Medical Ranges & Levels

The most frequent causes of fevers are the common cold and stomach flu, but a wide range of conditions can cause fevers, according to WebMD. Some possible contributors are viral or bacterial infections, blood clots, and ... More » Health Pain & Symptoms

A persistent low-grade fever should be treated using self-care measures, such as getting enough rest, drinking fluids and taking medications like acetaminophen, ibuprofen and aspirin, according to HealthGrades. Healthgra... More » Health Pain & Symptoms

A fever is defined as any body temperature that is above the normal temperature of 98.6 F , or 37 C. The reading for adults is not considered significant until it goes over 100.4 F, or 38 C, according to MedicineNet. More »

A fever becomes dangerous for infants at 100.4 degrees Fahrenheit, and 104 degrees for a child or adult, according to Seattle Children's Hospital. At these high temperature levels, a fever can cause seizures, abnormal bo... More »

There are many things that cause a person to have heart palpitations, with some of the most common being fever, stress, fear, exercise, panic attacks and illegal drug use, according to the National Institutes of Health's... More » Health Medical Ranges & Levels

Symptoms of low cortisol include nausea, abdominal pain, vomiting, fever and joint pain, states Healthline. Other symptoms of low cortisol are loss of appetite, dramatic changes in blood pressure, weakness, chills and fa... More »