How long should a mercury thermometer be left in the armpit for temperature measurement?
Disease description:
I’ve caught a cold over the past two days and have developed a fever. I need to measure my body temperature using a mercury thermometer—how long should I hold it under my armpit?
Doctor's answer (1)
Dr. Wang Xingsheng
A mercury thermometer should be placed under the armpit for 5 to 10 minutes. Before use, shake the thermometer vigorously to lower the mercury column below 35°C. Normal axillary (underarm) body temperature typically ranges from 36°C to 37°C. If the temperature exceeds 38°C, antipyretic medication—such as ibuprofen—should be taken only under a physician’s guidance. In daily life, ensure adequate warmth and avoid exposure to cold.
