There are three principal locations for taking the patient’s temperature.
a. Mouth.
A temperature taken by placing a thermometer in the patient’s mouth is called an oral temperature. Most of the temperatures taken in a medical facility are oral temperatures. A thermometer designed for taking an oral temperature is called an oral thermometer.
b. Armpit.
A temperature taken by placing a thermometer under the patient’s arm in his armpit area is called an axillary temperature. A thermometer designed for taking oral temperatures is also used to take axillary temperatures.
c. Rectum.
A temperature taken by holding a thermometer within the patient’s rectum is called a rectal temperature. A thermometer designed for taking a rectal temperature is called a rectal thermometer.