The body’s core temperature reflects how well our body is functioning. Measuring core body temperature is important to monitor our body for any indications of illness. Having a high or low body temperature indicates that our body might be experiencing a problem that needs immediate attention. In this article, we will explore different ways on how to measure core body temperature.
### Understanding core body temperature
Core body temperature simply refers to the internal temperature of our bodies. A healthy body temperature range is between 36.1-37.2°C (97–99°F) for adults. The body’s temperature is a reflection of how well they’re dealing with heat coming from the outside world and internal heat production. The core temperature is different from the typical body temperature reading that we get from forehead or oral thermometers. It is measured by checking the body temperature at the brain’s hypothalamus, which is the primary regulator of the body’s temperature.
### The most common techniques to get the body’s core temperature
Despite the invasive nature, rectal measurement remains the most accurate technique for measuring core body temperature. However, most people prefer alternative approaches that aren’t as intrusive. Here are some of the most common techniques for checking body temperature:
#### Axillary measurement
Axillary, or underarm, temperature measurement is the most common and easiest method to measure body temperature. It’s a less invasive approach and popular among kids. The thermometer is placed under the armpit for a few minutes to get an accurate reading. Though it’s a popular method, this approach can produce inconsistent results and may not always provide an accurate temperature reading.
#### Oral measurement
Oral measurement involves holding the thermometer under the tongue for a few minutes until it provides an accurate reading. It’s the most preferred method for taking temperature because it’s easy and non-invasive. However, it’s essential to avoid eating, drinking, or smoking just before the test as it may alter the temperature reading.
#### Tympanic measurement
This technique uses an ear thermometer that is inserted gently into the ear to obtain a reading. The thermometer reads the temperature by measuring the infrared radiation from the eardrum. This method is popular among health workers because it’s fast and painless.
#### Temporal artery measurement
This technique involves using an infrared scanner to measure the temperature of the forehead’s temporal artery. It’s a non-invasive procedure that’s quickly gaining popularity among health workers, especially during the COVID-19 Pandemic. The infrared scanner detects the forehead’s heat radiated from the temporal artery, providing an accurate reading.
#### Esophageal measurement
This technique is mostly used in healthcare settings. It records the temperature of the esophagus by passing a specialized temperature-sensitive thermometer tube through the nose or mouth into the esophagus. It’s an accurate way to measure the temperature of the core body, especially in critically ill patients.
### Tips for measuring core body temperature accurately
Regardless of the technique used, there are essential tips to get an accurate reading.
#### Choose the right thermometer
The consistency and accuracy of the temperature reading are vital to monitor changes in your body’s temperature. It’s essential to choose the right thermometer for the right approach.
#### Get baseline temperature readings
Getting the base temperature in different parts of the body when healthy will give a point of reference to check if there’s any rise or fall in temperature. For instance, if the temperature consistently falls at night, it might indicate a health problem that needs attention.
#### Take temperature under appropriate conditions
To get an accurate reading, it’s essential to meet recommended temperature reading conditions. Avoid eating and drinking for fifteen to thirty minutes before taking oral temperature readings. Similarly, avoid bundling up while taking the axillary or rectal temperature readings. The environment’s temperature and the patient’s activity level are also important when taking temperature readings.
#### Check the temperature correctly.
It’s crucial to read the manufacturer’s instructions and guidelines before taking the temperature. Typically, digital thermometers will beep when it’s time to take the temperature out. Check the temperature reading and record the result.
#### Treat a fever immediately.
It’s important to monitor body temperature to detect fever, which may indicate underlying health conditions. High body temperature can harm the organs, so it’s crucial to seek medical attention when fever is detected.
In conclusion, measuring core body temperature is essential to keep track of our body’s changes and detect illnesses. The several techniques for checking body temperature may have various degrees of accuracy, comfortability, and convenience. Each technique has unique benefits and drawbacks, which make them suited to different ages, individuals, and medical requirements.