How many minutes does it take to measure temperature under the armpit with a mercury thermometer?

It usually takes 2–3 minutes to complete an axillary measurement using a mercury thermometer. To ensure accuracy and safety during measurement, follow these steps: 1. Disinfect the mercury thermometer to ensure it is clean. 2. Have the patient lie on the bed with knees bent and the armpit area relaxed. 3. Place the mercury thermometer in the patient's armpit, ensuring good contact between the thermometer and the skin. 4. The temperature measurement typically lasts 2–3 minutes; during this time, keep the patient relaxed and avoid moving the thermometer. 5. After measurement, record the temperature and place the mercury thermometer into a disinfectant solution for sterilization.