What is considered a low grade fever in adults?
Temperatures measured under the armpit are not considered as accurate and can be as much as 1 degree F lower than an oral measurement. A temperature above normal but below 100.4 F (38 C) is sometimes considered a low-grade or mild fever. It may mean that the body is responding to an infection.
Although 98.6° F (37° C) is considered normal temperature, body temperature varies throughout the day. It is lowest in the early morning and highest in the late afternoon—sometimes reaching 99.9° F (37.7° C). Similarly, a fever does not stay at a constant temperature.
- The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the "normal" body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C). A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness.
- A normal rectal body temperature ranges from 36.4°C (97.5°F) to 37.6°C (99.6°F), and for most people it is 37°C (98.6°F). Sometimes a normal, healthy adult has a low body temperature, such as 36°C (96°F).
- Although we think of normal body temperature as 98.6 degrees F, body temperature varies -- and so does the definition of fever. Since body temperature rarely climbs above 99.9 degrees without a reason, this guide will consider a fever to be present when the body temperature is 100.0 F (38 degrees C) or higher.
Body temps very from person to person. Usually 98.1 to 98.6 is the normal temp, but mine is usually 96.8 for example. So where it may be low for someone else, it's my normal. So 98.6 would be a fever for me.
- Normal body temperature ranges from 97.5°F to 98.9°F (36.4°C to 37.2°C). It tends to be lower in the morning and higher in the evening.
- But if you're exposed to cold temperatures on a spring hike or capsized on a summer sail, you can also be at risk of hypothermia. Normal body temperature averages 98.6 degrees. With hypothermia, core temperature drops below 95 degrees. In severe hypothermia, core body temperature can drop to 82 degrees or lower.
- Checking a fever this way is more accurate than we used to think. But if you're going to call the doctor, use a thermometer to measure the fever. The body's average temperature when it is measured orally is 97.6°F (36.5°C). Fever is a symptom, not a disease.
A fever is a rise in body temperature. Rectal, ear or temporal artery temperature of 100.4 (38 C) or higher. Oral temperature of 100 F (37.8 C) or higher. Armpit temperature of 99 F (37.2 C) or higher.
- Persistent low-grade fever - Almost all cancer patients will experience a fever at some point, but fevers most often occur in patients whose cancer has metastasized, especially in cancers that affect the immune system. Blood loss, which occurs in some stomach and colon cancers, can also cause persistent fatigue.
- The well-known 98.6 degrees, is a normal temperature taken by mouth. ”In other words, an oral temperature of 100 degrees just before bedtime may actually be normal. An axillary temperature of 99 degrees in the morning may be the start of a fever.” Anything over 100.4 degrees F is considered a fever.
- Oral and axillary temperatures average about .5 F to 1.0 F (.3 C to .6 C) degrees below rectal, ear, and temporal readings. Add .5 to 1.0 when taking orally or under the arm to determine the comparable rectal temperature. Have a separate thermometer to use for oral than for rectal.
Updated: 6th October 2019