Thermometers are the most commonly used medical instruments today. Thermometers are sold in many different designs and ways of use on the market, including specially designed thermometers for infants. Every household should buy good thermometers and understand how to use them to protect the health of themselves and their loved ones.

Fever is the most common symptom that causes parents to take their children to medical facilities. Fever is defined as a body temperature of 38 degrees Celsius or higher. The main cause of fever in children is viruses, which are benign. The remaining small percentage comes from bacteria, causing serious infectious conditions.

Fever is defined as a body temperature of 38 degrees Celsius or higher. Fever is a protective response of the immune system against pathogens. Thus, fever is a beneficial response, however, children with fever are often accompanied by fussiness, discomfort, loss of appetite and weight loss.

Human body temperature can change rapidly. If a child or someone is sick, the caregiver needs to know how to monitor body temperature. Therefore, knowing how to measure a mercury thermometer accurately and safely at home will help monitor health as well as take better care of the sick person.