Temporal temperature measurement offers a convenient, non-invasive way to check body temperature. It is popular for its ease of use and rapid results, making it a common choice for quick assessments at home. Unlike traditional oral or rectal thermometers, temporal thermometers provide a comfortable alternative, especially for children.
About Temporal Thermometers
Temporal thermometers utilize infrared technology to measure the heat emitted from the temporal artery, a major blood vessel located just beneath the skin on the forehead. The device’s infrared sensor captures thermal radiation as blood flows through this artery, converting it into a temperature reading displayed on the thermometer. Some models scan the area over the artery, taking multiple readings per second to identify the peak temperature, which is considered the most accurate.
Taking a Temporal Temperature
Proper technique is key for accurate temporal temperature measurement. Begin by ensuring the forehead is clean and dry, free from sweat, hair, or cosmetics. If the forehead is sweaty, wait 10-15 minutes or consider scanning the soft depression behind the earlobe for an alternative reading. Next, place the thermometer’s sensor flush against the center of the forehead.
Press and hold the scan button, then slowly and steadily slide the thermometer in a straight line across the forehead towards the hairline, near the temple area. Maintain continuous contact with the skin throughout the scan. Releasing the scan button too early can result in an inaccurate, often lower, reading. Some models may also instruct you to briefly touch the soft area behind the earlobe after scanning the forehead, while still holding the button. After completing the scan, release the button and read the displayed temperature.
Understanding Your Reading
Normal body temperature is a range influenced by factors such as age, time of day, and activity level. For adults, a typical temporal temperature generally falls between 97°F and 99°F (36.1°C to 37.2°C). Infants and young children often have slightly higher average body temperatures; for newborns, it can be around 99.5°F (37.5°C), while children’s average is about 97.52°F (36.4°C). A fever is generally indicated by a temporal reading of 100.4°F (38°C) or higher.
Factors can influence temporal temperature accuracy. Direct sunlight, cold ambient temperatures, recent physical activity, wearing hats, or certain medications can affect the reading. If there is concern about the accuracy of a temporal reading, especially in infants, consulting a healthcare provider is advisable, as rectal temperatures are often considered the most precise for this age group. Seek medical attention for infants under three months with a temperature of 100.4°F (38°C) or higher. For older children and adults, consult a doctor if a fever reaches 104°F (40°C) or higher, persists for more than three days, or is accompanied by severe symptoms like stiff neck, difficulty breathing, or confusion.