Infrared thermometers

Infrared thermometers have been used in the medical field since the mid 1980’s and are growing in popularity particularly amongst families with young children. The growth in this field can be attributed primarily to their affordability in the market place.

In clinical settings body temperature has been routinely monitored with infrared ear thermometers which measure energy emitted from the eardrum over a specific time frame. This is done through the probe of the thermometer being inserted into the ear canal and a reading obtained. Tympanic readings are considered to be reliable indicators of core body temperature with the eardrum being located close to the body’s temperature regulator the hypothalamus.

Today’s ear thermometers are specifically designed with safety in mind and are simple to use, suitable to be used on all age ranges on sleeping or waking patients. Many models incorporate replaceable probe covers to avoid the risk of cross infection. Please be sure to use the probe covers manufactured for your particular model of thermometer as probe covers can vary in thickness and consequently readings may not be reliable if used on another manufacturer’s thermometer.

Improper positioning of the ear thermometer is probably the most common reason for inaccurate readings. Be sure to follow the manufacturer’s instructions carefully. It is recommended to take three separate readings from the same ear when you are learning to use the instrument. If the readings are different use the highest reading as the most accurate. Slight temperature variations are likely to happen when consecutive readings are taken. If you are unhappy with the reading and the child is old enough use an oral thermometer.

It must be noted that when comparing readings from different parts of the body these readings are likely to vary. Normal temperature tends to decrease with age, normal readings can vary between people of the same age. It is encouraged that you practice using your thermometer on yourself and members of your family to establish your ‘normal’ temperature, in that way you will quickly be able to establish abnormalities when unwell.

Troubleshooting

Should you get no reading or a Lo reading please check to see that you have removed the protective end cap from the thermometer. The infrared ear thermometer is not recommended for patients with a build up of ear wax or ear infections as inaccurate readings are likely to be recorded. With thermometers which do not use protective probe covers ensure that the lens is clean dry and undamaged.

Use of thermometer with different age groups

For Infants under 1 year of age : Pull the outer ear down and back, this gives the thermometer probe a clear view of the eardrum

For children 1 year to Adult : Pull the outer ear up and back to give the thermometer a clear view of the eardrum.

Whilst holding the ear, insert the probe to seal the ear canal then press the scan/reading button to take the measurement. Only release the ear tug once the reading has been taken.

A common problem with ear temperatures is improper positioning of the infrared device in the ear canal. Be sure to follow the instructions carefully and take several readings in rapid succession to make sure they are reasonably consistent. And don’t forget you can use an oral thermometer if your child is old enough to safely have the thermometer in his or her mouth.

Please Note that Multipoint Technologies only supplies products that meet Australian TGA standards. It is illegal to supply medical devices without TGA approval, unfortunately the internet is full of potentially dangerous devices, sold with either stolen / fake or no TGA numbers. Rest assured and purchase from Multipoint.

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