How to use a thermometer
The thermometer is a tool used to measure the temperature of an object or person. It consists of a sealed glass tube filled with a liquid (usually mercury or alcohol) and a graduated scale that indicates temperature in Celsius (°C) or Fahrenheit (°F).
There are different types of thermometers, including:
- Mercury thermometer: the most common, but less safe due to the risk of breakage and exposure to mercury, which can be toxic.
- Digital thermometer: more accurate and easy to read, but requires batteries and cannot be used in extreme situations such as water immersion or exposure to very high or low temperatures.
- Ear thermometer: uses infrared to measure the temperature inside the ear, but can be influenced by the presence of earwax.
In this article we will focus on the use of the mercury thermometer, which is still widely used in domestic and medical settings.
Types of thermometers and how they work
There are different types of thermometers, each using a different method to measure temperature. Here are the main ones:
- Mercury thermometer: this type of thermometer consists of a small amount of mercury contained in a thin glass tube. When the temperature increases, the mercury expands and rises in the tube. By reading the graduated scale on the side of the tube, it is possible to determine the temperature.
- Digital thermometer: these thermometers use an electronic sensor to measure temperature. The reading is displayed on a digital screen. They are very accurate and easy to read.
- Ear thermometer: this type of thermometer is inserted into the ear to measure the temperature of the eardrum. It uses an infrared sensor to detect temperature.
- Infrared thermometer: these thermometers do not touch the body but use a laser beam to detect temperature from the surface of the skin. They are ideal for people who do not want to be disturbed during sleep.
Each type of thermometer has its advantages and disadvantages. For example, mercury thermometers are very accurate but can be dangerous if broken, while ear thermometers are easy to use but may not be accurate if the ear is dirty or blocked.
Regardless of the type of thermometer used, it is important to follow the manufacturer's instructions and make sure to calibrate the thermometer before use. Additionally, it is always a good idea to keep a record of temperatures to monitor any changes over time.
How to use an oral thermometer
The oral thermometer is one of the most common types of thermometers and can be easily used at home. Here's how:
Step 1: Cleaning
Clean the thermometer with warm water and soap or alcohol before use to avoid spreading bacteria.
Step 2: Turn on
Turn on the thermometer by pressing the power button, if available. Otherwise, simply insert the thermometer tip into your mouth.
Step 3: Positioning
Place the thermometer tip under your tongue and close your lips around it. Make sure the tip is positioned under your tongue and not against your gums or cheeks.
Step 4: Wait
Hold the thermometer in place until you hear an audible or visual signal indicating that the reading has been completed. This may take anywhere from 30 seconds to a minute.
Step 5: Reading
Remove the thermometer from your mouth and read the temperature on the display. If the temperature value seems too high or too low, repeat the process after a few minutes.
- Note: Never use an oral thermometer while eating or drinking, as this can affect body temperature readings.
- Warning: Never use an oral thermometer on children under 4 years of age, as they may bite it and break it in their mouth. In this case, it is preferable to use a rectal or ear thermometer.
How to Use an Ear Thermometer
An ear thermometer is a simple and fast tool for measuring body temperature. Here's how to use it correctly:
Clean the Ear Canal
Before using the thermometer, make sure that the ear canal is clean and free of wax or other substances. You can gently clean the inside of the ear with a cotton swab or soft cloth.
Insert the Thermometer into the Ear
Position the ear thermometer at the entrance to the external auditory canal and gently insert it until it fits perfectly to the shape of your ear. Make sure it is well positioned to obtain an accurate reading.
Wait for Temperature Reading
After inserting the thermometer into your ear, press the power button and wait for the temperature reading. Most ear thermometers provide a reading in just a few seconds.
Record the Temperature
After obtaining the temperature reading, record it on a piece of paper or in your device's memory if the thermometer has this function. This way you can monitor any changes in your body temperature over time.
- Remember to clean the thermometer after each use with a soft, clean cloth.
- Make sure to follow manufacturer instructions for proper use of the ear thermometer.
Using an ear thermometer is simple and fast. By following these steps, you can measure your body temperature accurately and reliably.
How to Use a Rectal Thermometer
A rectal thermometer is a medical tool that is used to Measure body temperature of a person. This type of thermometer is considered the most accurate, but it can be uncomfortable to use. Here's how to use it correctly:
Cleaning
Before using the rectal thermometer, make sure it is clean. You can do this by washing it with soap and water or using a specific disinfectant. Dry it well with a clean cloth before using it.
Positioning
To use the rectal thermometer, you need to position yourself comfortably and relaxed. Lie on your back or on one side, bend your knees slightly and gently insert the thermometer into the rectum.
Taking the temperature
Insert the rectal thermometer about 2-3 centimeters inside the rectum. Hold it in place until you hear an acoustic or visual signal indicating the end of the measurement (usually after about 60 seconds).
Gently remove the thermometer from the rectum and check the temperature displayed on the screen. If you need to measure your temperature again, make sure to clean the thermometer before doing so.
Cleaning after use
After using the rectal thermometer, clean it with soap and water or a specific disinfectant. Dry it well with a clean cloth and store it in a protective case.
- Remember never to use the same thermometer to measure the temperature of multiple people without first cleaning and disinfecting it properly.
- If you have health problems such as hemorrhoids or injuries in the rectum, always talk to your doctor before using a rectal thermometer.
Using a rectal thermometer may seem uncomfortable, but it is an important tool for monitoring your health. With these simple steps, you can use it correctly and obtain accurate results.
How to read the temperature correctly
Once you have understood how to use your thermometer, it is important to know how to read the temperature correctly. Here are some useful tips:
1. Make sure you have an accurate reading
Before starting to read the temperature, make sure that the thermometer has been used correctly and that it is positioned in the correct part of the body. Also, check if the thermometer needs to be calibrated or replaced.
2. Read the temperature after the acoustic signal (if present)
Some thermometers emit an acoustic signal when they have finished recording the temperature. Always wait for this signal before reading the temperature to ensure maximum accuracy.
3. Know normal body temperatures
It is important to know normal body temperatures in order to interpret your measurement results correctly. For example, normal human body temperature is generally between 36.5°C and 37.5°C.
4. Keep track of your readings
Keep a record of your temperature readings to monitor any changes and detect any anomalies. This way you will be ready to act promptly in case of health problems.
- Make sure to write down the date and time of the reading.
- Also note the location of the thermometer (e.g. under the armpit or in the mouth).
- If you used an ear or forehead thermometer, also note the room temperature.
Remember that reading your temperature correctly is crucial for obtaining accurate information about your health. Follow these tips and you'll be able to read your temperature correctly every time.
What to do if the temperature is high or low
If the temperature detected by the thermometer is too high or low, there are some actions you can take to help manage the situation.
High Temperature
If the patient has a high fever, usually above 38°C, some measures may need to be taken to reduce the temperature. Here are some suggestions:
- Give the patient enough water to drink to avoid dehydration.
- Have them wear light and breathable clothing.
- Place a damp cloth on their forehead to help cool them down.
- Give them antipyretic medications such as ibuprofen or paracetamol to lower their temperature.
Low Temperature
If instead the patient has a body temperature below normal, they may be experiencing hypothermia. In this case, here's what to do:
- Warm them up with warm and dry blankets.
- Put a hat and gloves on them to keep their body warm.
- Give them something warm to drink like tea or broth.
- Take them to a warm and wind-protected place.
Remember that in both cases, if the patient's temperature continues to remain too high or low, it's important to seek professional medical assistance as soon as possible.
Conclusion
Knowing how to use a thermometer and interpret the results correctly can be very useful for monitoring personal health or that of loved ones. Always remember to follow the manufacturer's instructions and consult a doctor if you have any doubts or concerns about your body temperature. With this information, you are ready to use your thermometer safely and accurately.
Michael Anderson - Software Engineer
My name is Michael Anderson, and I work as a computer engineer in Midland, Texas.
My passion is sharing my knowledge in various areas, and my purpose is to make education accessible to everyone. I believe it is essential to explain complex concepts in a simple and interesting way.
With GlobalHowTo, I aim to motivate and enrich the minds of those who want to learn.