they can be checked by keeping them in under arms
As a temp. indicator in thermometers.
Yes so they can get the temp. the better.
By 'regular thermometer' I presume you mean a medical thermometer, since that type is designed specifically for checking body tempertaure in humans and would not be suitable for most other uses. Other thermometers have a more general use, so that you can check the temperature of your room, or fridge, greenhouse etc.
You can read the temp a lot easier.
94.6
Oral temp is usually lower especially if the pt. is a "mouth breather" or has drank something cold.
nope.
Yes
A child's body temperature is the same as an adult's body temperature. A normal oral temperature is 98.6 degrees. Forehead or underarm temperature is normally one degree less because it is more exposed to the air which results in less than a core-body temperature, so a normal forehead or underarm temp can be around 97.6. Note: A high underarm temp should be re-checked orally to confirm a fever. For example, if a forehead or underarm temp is 100.8, the oral temp is likely 101.8. Rectal temp is sometimes preferred to give a more accurate reading.
37.0
Take your temperature at the same time every day for a week. Use an oral thermometer. Do not test right after you've had anything to drink--hot or cold drinks can temporarily change the oral temp.
Rectal temperature is much less influenced by other factors.