The following thermometer readings generally indicate a fever: 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.
Also to know is, can a digital thermometer be wrong?
Most thermometers claim to be accurate within 0.1–0.3°C. But our team of experts found that some personal thermometers can be off by as much as 0.83°C, meaning that a healthy temperature of say, 37.4°C could be misread as a fever of 38.2°C, causing unnecessary alarm and even unwarranted trips to the emergency room.
Additionally, do I add a degree to a digital thermometer?
Should I add a degree to oral (under the tongue) and axillary (under the arm) readings? Yes, for the most accuracy. Rectal temperatures are considered most accurate indication of the body’s temperature. Oral and axillary temperature readings are about ½° to 1°F (.
How accurate are digital thermometers?
Digital thermometers provide accurate readings in about 1 minute or less.
The ice bath test is the easiest way to test a thermometer for accuracy, assuming your thermometer will display temperatures of 32°F or less. The advantage of this method is that an accurate thermometer will always read 32°F in a properly made ice bath regardless of altitude or atmospheric pressure.
To use a digital thermometer:
- Clean the tip with cold water and soap, then rinse it.
- Turn the thermometer on.
- Put the tip under your tongue, towards the back of your mouth.
- Close your lips around the thermometer.
- Wait until it beeps or flashes.
- Check the temperature on the display.
For digital thermometers:
Test every six months or so (depending on frequency of use) to make sure the thermometer works properly, using either the ice water or boiling water method. Many digital thermometers have reset buttons. If the accuracy is off, adjust the thermometer to the proper temperature using this button.
If you’ve been eating or drinking, wait 30 minutes before you take a temperature by mouth. Turn on the digital thermometer. Place the thermometer tip under your tongue. Close your mouth around the thermometer for the recommended amount of time or until the thermometer beep indicates it’s done.
A fever is generally agreed to be present if: Temperature in the mouth (oral) is at or over 37.8°C (100°F) Temperature under the arm (axillary) is at or over 37.2°C (99.0°F) Temperature in the anus (rectum/rectal), in the ear (otic) or temporal artery temperature of 38°C (100.4°F) or higher.
Follow these steps if your symptoms are mild
Mild symptoms of COVID-19 (the new coronavirus) can be like a cold and include: Low-grade fever (around 100 degrees F for adults) Nasal congestion. Runny nose.
The medical community generally defines a fever as a body temperature above 100.4 degrees Fahrenheit. A body temp between 100.4 and 102.2 degree is usually considered a low-grade fever. “If the temperature is not high, it doesn’t necessarily need to be treated with medication,” Dr. Joseph said.
A fever (high temperature – 38 degrees Celsius or above) can be a symptom of COVID-19. Your body’s normal temperature is between 36 and 36.8 degrees Celsius. A high temperature or fever, for most people, is when your body temperature is 38 degrees Celsius or higher.
What are the symptoms of a fever? 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. Most healthcare providers consider a fever to be 100.4°F (38°C) or higher.
An adult probably has a fever when the temperature is above 99°F to 99.5°F (37.2°C to 37.5°C), depending on the time of day.
What is a fever? A fever is when the body temperature is 38° C (100° F) or higher. Fever means that the body temperature is higher than normal. Fever often means your child has an infection, but other conditions can also cause fever without any infection.
A normal adult body temperature, when taken orally, can range from 97.6–99.6°F, though different sources may give slightly different figures. In adults, the following temperatures suggest that someone has a fever: at least 100.4°F (38°C) is a fever. above 103.1°F (39.5°C) is a high fever.
A factor that needs to be considered is how you took your temperature. If you measured your temperature under your armpit, then 99°F or higher indicates a fever. Temperature measured rectally or in the ear is a fever at 100.4°F (38°C) or greater. An oral temperature of 100°F (37.8° C) or more is a fever.
Fever. In most adults, an oral or axillary temperature above 37.6°C (99.7°F) or a rectal or ear temperature above 38.1°C (100.6°F) is considered a fever. A child has a fever when his or her rectal temperature is higher than 38°C (100.4°F) or armpit (axillary) temperature is higher than 37.5°C (99.5°F).
Some experts define a low-grade fever as a temperature that falls between 99.5°F (37.5°C) and 100.3°F (38.3°C). According to the U.S. Centers for Disease Control and Prevention (CDC), a person with temperature at or above 100.4°F (38°C) is considered to have a fever.
A temperature of 99.9° F (in the armpit) would be considered a fever only in babies under one year. A core (rectal) body temperature of 100.4° F (38.0° C) or higher in adults, and 99° F (37.2° C) (armpit) or 100.4° F (38° C) (rectal) in babies under one year is considered a fever.
Normal body temperature ranges from 97.5°F to 99.5°F (36.4°C to 37.4°C). It tends to be lower in the morning and higher in the evening. Most healthcare providers consider a fever to be 100.4°F (38°C) or higher. A person with a temperature of 99.6°F to 100.3°F has a low-grade fever.
Underarm (axillary) and forehead temperatures are considered to be the least accurate because they’re taken outside of the body rather than inside. These temperatures can be as much as a full degree lower than oral body temperature.
Normal body temperature chart
|Type of reading||0–2 years||Over 65 years|
|Oral||95.9–99.5°F (35.5–37.5°C)||96.4–98.5°F (35.8–36.9°C)|
|Rectal||97.9–100.4°F (36.6–38°C)||97.1–99.2°F (36.2–37.3°C)|
|Armpit||94.5–99.1°F (34.7–37.3°C)||96.0–97.4°F (35.6–36.3°C)|
|Ear||97.5–100.4°F (36.4–38°C)||96.4–99.5°F (35.8–37.5°C)|
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.
Despite the new research, doctors don’t consider you to have a fever until your temperature is at or above 100.4 F. But you can be sick if it’s lower than that.
Differences between measurements can also result from the following factors: … Put the device on the table in the room where the measurement is taking place and let it cool down first. Your room temperature is too low or too high. Use your thermometer at temperatures between 10.0 °C/ 50.0 °F and 40.0 °C/ 104.0 °F.