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April 23, 2020

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If you’re like many, many mums you’ll have a cupboard full of different thermometers and kids who always seem to have a temperature …

… trouble is more often than not, the reason for the temperature is not apparent so we don’t know what to do when.

The thermometer is one of the most frequently used items contained in the medicine cupboard of a home in which children live. Most parents will only begin the search for the thermometer when they feel their little one burning up, having missed the more subtle signs that were evident earlier in the day, such as refusing to eat and sleeping longer than usual. A thermometer is designed to measure temperature and when used on a person it measures the internal temperature of the body.

Normal body temperature ranges from approximately 36.5°C to 37.5°C and fever is a temperature above 38.0°C. Fever is not an illness, it is instead the body’s natural defence against an infection. Fever is the elevation of the temperature set point in the brain in response to an infection in the body. In such cases, the person feels cold and goes about trying to heat their body by doing such things as shivering and constricting blood vessels close to the skin surface. By elevating the body’s temperature the infection, which is most commonly caused by a virus, is destroyed as it cannot function in a hot environment.

When it comes to buying a thermometer there is not a clear standout in regard to ease of use, accuracy and price.

The thermometers most commonly used in the community include:

1)     Digital Thermometer: Most commonly inserted into the mouth or under the armpit. Although it is known to be the least expensive and one of the most accurate (when used in the mouth) it does take longer to obtain a temperature reading, making it difficult to use with a squirmy toddler. Retails for approximately $15.

2)     Infrared Tympanic (ear) Thermometer: Easily inserted into the ear canal to obtain a temperature within seconds using infrared light. Difficult to use with young babies as the probe is usually too large to sit comfortably in the ear canal which therefore reduces its accuracy. Retails for approximately $90.

3)     Forehead Strip Thermometer: A disposable strip of plastic with embedded liquid crystals is placed against the child’s forehead. The crystals react with the skin temperature and change colour accordingly. The temperature is obtained by matching the colour against a number line. Although they are easy to use they are the least accurate and are therefore not recommended for use by the Royal Children’s Hospital Melbourne. Retails for approximately $5 for a pack of 4 strips.

4)     Forehead (Temporal Artery) Thermometer: The thermometer is scanned over the temple of the child and obtains a temperature within seconds using infrared light. It has been proven to be one of the most accurate but it is also the most expensive. Retails for approximately $130.

Working as a First Aid Educator and Ambulance Paramedic, I frequently encounter parents who are unsure about how to best manage their child’s fever and are therefore very anxious when they become unwell with a fever.

At home, fever management is based on making the child comfortable and this may include reducing clothing to a nappy and possibly also a singlet, placing a cold face washer across their forehead or back of their neck and giving them frequent sips of clear fluids. No longer is it recommended to place children who have a fever in cold baths, provide them tepid sponging or spray them down with cold water. The Royal Children’s Hospital Melbourne recommends only giving a fever relieving medication, such as Paracetamol or Ibuprofen to children with a fever above 38.5°C who are miserable or in pain.

When caring for a child with a fever at home, parents should be watching out for some key signs and symptoms to indicate the need to see a doctor.

A baby under 3 months old who has a fever should always be seen by a doctor because they can get sick very quickly. Otherwise, if a child has a fever above 40°C or has a sustained fever then it is recommended that they also see a Doctor. It is common to lose body fluid whilst having a fever which increases if there is any associated vomiting and/or diarrhoea. If the baby or child has poor fluid intake and output, for example less than 4 wet nappies in 24 hours, then medical attention should always be sought. Other signs and symptoms that could indicate serious illness include; difficulty breathing, pain, complaints of a stiff neck or light hurting their eyes and/or rash.

It is important to remember that fever is common in children. However, I strongly believe that a parent knows their child best and therefore recommend to parents that if they have any serious concerns about their child’s health that they get them reviewed by a doctor sooner rather than later.

This article was written by Amanda Thornton.  As well as being a mum of two gorgeous children, Amanda is the driving force behind Child Revive First Aid .  Child Revive First Aid came about as a direct result of Amanda’s nine years as a Paramedic, during which time she witnessed firsthand the devastation families experienced when they were unprepared in managing their sick child. As a result, Amanda is passionate about assisting parents and carers achieve an appropriate level of First Aid knowledge and skill in order to gain the confidence to act in an emergency that involves a child.

What kind of thermometer do you use? Tell us in the comments below.

  • The best thermometer I had when my children were babies was a dummy one. Just switch it on and let them suck on it like a regular dummy. Once they were older I invested in a inner ear thermometer and 15 years later we are still using it.

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  • We have an under arm thermometer. Cheap but works well.

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  • We use an ear thermometer. I do also have the old school glass one that you flick with your wrists.

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  • I have the ear thermometer because I read it was more accurate than the forehead one. I kind of wish I got the latter for ease of not needing to buy extra caps.

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  • We use the Braun thermoscan 7, was a bit pricey but we love it. I have never have an issue with using it with our toddler and newborn. The different colours, green, yellow and red also alerts you if temperature is not normal. Very happy with it and have no intention to change.

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  • Tympanic for for me

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  • I bought a in fared thermometer (it is the same one our doctor uses). I had tried many before and the only other one i did like was the ear thermometer. I love the new one and its great as you can get a reading from up to 5cm away so you dont have to wake the kids if you need to check on them through the night. Have found it very reliable.

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  • I use a digital thermometer simply because it’s the easiest for me. Some pros and cons for all.

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  • Love our thermometer. Great for a piece of mind. We splashed out for ours.

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  • very interesting article

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  • Fevers are the worst! My eldest used to get temps of 42° that always lasted 3 days! But we were always told she wasn’t sick so to just give her painkillers. It’s that advice that can cause issues! There have been times when she wouldn’t wake up, so we would dose her and keep an eye on her, apparently that is when there is an issue and they need to see a dr. Also when she complained of a sore neck, she should have been taken it, but every other time, the doctors acted as if we were wasting their time! A good measure is to feel their forehead and chest, if the forehead is hot but the chest is not, it’s not usually anything to worry about.

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  • Under arm

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  • I’ve used so many different ones. The ear one seems the best for us so far.

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  • I’ve used a range depending on the age and stage of the children. When a child is sick I think it’s helpful to have a thermometer that is quick and provides accurate results.

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  • I have the forehead one that’s very accurate

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