When you’re buying a thermometer for the first time, understanding how to read it can seem a little confusing. With various types of thermometers on the market, such as infrared thermometers and digital thermometers, knowing what the readings mean is crucial for accurately assessing your health or that of your family members.
This beginner’s guide will walk you through the basics of thermometer readings, so you feel confident using your new device at home.
Understanding the Different Types of Thermometers
Before diving into interpreting the readings, it’s essential to know the types of thermometers you might encounter. Each has its advantages, but they also differ in terms of how they measure temperature.
- Infrared Thermometer: These thermometers measure the heat emitted from the body, typically from the forehead or ear, without needing to make direct contact. They are popular for their speed and ease of use, especially for children.
- Digital Thermometer: These thermometers are placed in the mouth, armpit, or rectum and provide highly accurate readings. Digital thermometers are versatile and reliable for checking body temperature.
Normal Temperature Range
For most people, the normal body temperature ranges from 36.1°C to 37.2°C (97°F to 99°F). However, this can vary slightly depending on factors such as the time of day, age, and activity level. Generally, if your reading falls within this range, it’s considered normal.
- Forehead (Infrared) Readings: Slightly lower than oral temperatures, normal readings are around 36°C to 37°C (96.8°F to 98.6°F).
- Oral (Digital) Readings: Normal is considered to be between 36.5°C and 37.5°C (97.7°F to 99.5°F).
Fever Readings and When to Take Action
If your infrared thermometer or digital thermometer shows a reading above the normal range, it may indicate a fever. Fever is typically classified as:
- Mild Fever: 37.6°C to 38°C (99.6°F to 100.4°F)
- Moderate Fever: 38.1°C to 39.4°C (100.5°F to 103°F)
- High Fever: Above 39.5°C (103.1°F)
For infants and young children, even a mild fever may need medical attention, while in adults, a high fever above 39.5°C (103.1°F) can be a cause for concern and may require professional care.
How to Take Accurate Temperature Readings
- Position the Thermometer Correctly: Whether using an infrared thermometer or digital thermometer, ensure it’s placed correctly. For infrared thermometers, make sure there’s no sweat or hair in the way when measuring from the forehead. For digital ones, place it under the tongue or in the armpit properly.
- Wait for the Right Moment: For accurate readings, wait a few minutes after eating, drinking, or exercising before taking your temperature.
- Follow Manufacturer’s Instructions: Different thermometers have slightly different usage guidelines, so always refer to the user manual to ensure proper operation.
Common Mistakes to Avoid
- Measuring Too Soon After Moving Around: Physical activity can cause your body temperature to rise temporarily, leading to false readings.
- Using a Dirty Thermometer: Clean your thermometer regularly to avoid contamination and inaccurate readings.
- Not Allowing the Thermometer to Reset: If your digital or infrared thermometer doesn’t reset between uses, the readings may not be correct.
Final Thoughts on Choosing the Right Thermometer
When choosing between an infrared thermometer and a digital thermometer, consider your needs. Infrared thermometers are ideal for quick, non-contact readings, especially for young children. On the other hand, digital thermometers offer high accuracy, especially when taken orally or rectally. Regardless of which you choose, being able to properly interpret the readings ensures you can monitor your health effectively.
As a first-time buyer, the key is practice and familiarity with your device. Over time, you'll be able to confidently assess body temperatures and respond appropriately when something's off.
Source Of This Article: How To Assess Thermometer Readings - Guide for First-Time Buyers
