Surface temperature scanner is unreliable way to detect fever associated with Covid-19

[ad_1]

Having people stand in front of a scanner to have their body temperature read can lead to a large number of false negatives, allowing people with Covid-19 to pass through airports and hospitals undetected.

Instead, leading physiology experts have suggested that taking temperature readings of a person’s fingertip and eye would give a significantly better and more reliable reading and help identify people with fever.

The study, co-led by human physiologist and temperature regulation expert Professor Mike Tipton, is published in Experimental physiology.

If scans don’t give an accurate reading, we run the risk of wrongly excluding people from places they want or need to go, and we also run the risk of allowing people with the virus to spread the infection. not detected that they have.

Professor Tipton, University of Portsmouth

The study revealed four key factors:

  • Temperature alone is not a good indicator of illness – not everyone with the virus has a fever and many develop only one after admission to hospital;
  • Measuring skin temperature does not give an accurate estimate of deep (high in fever) body temperature. A direct measurement of deep body temperature is not practical;
  • A high temperature, even taken from the deep body, does not necessarily mean that a person has Covid-19; and
  • Taking two temperature readings, one in the finger and the other in the eye, is likely to be a better and more reliable indicator of a fever-induced deep body temperature increase.

Professor Tipton said: “Using a surface temperature scanner to obtain a single surface temperature, usually the forehead, is an unreliable method of detecting fever associated with Covid-19. Too many factors make measuring skin temperature a poor substitute for deep body temperature; skin temperature can change independent of deep body temperature for many reasons. Even though such a single measurement reliably reflected deep body temperature, other things, like exercise, can increase deep body temperature.

“The pandemic has had a devastating global effect on all aspects of our lives and, sadly, it is unlikely to be the last pandemic we are facing. It is essential that we develop a method to assess whether an individual has a fever that is accurate and rapid. “

The most common symptom of the 55,924 confirmed cases of Covid-19 reported in China through February 22, 2020 was fever, followed by other symptoms, including dry cough, sputum production, shortness of breath, muscle or joint pain, sore throat, headache chills. , nausea or vomiting, nasal congestion and diarrhea.

However, researchers say a significant proportion (at least 11%) of people with Covid-19 do not have a fever, and less than half of those admitted to hospital with suspected Covid-19 had a fever. Although the majority of positive cases develop a high temperature after being admitted to hospital, they were contagious before their temperature soared.

We think we can improve the identification of the presence of fever by using the same kit, but looking at the difference between eye and finger temperature – it’s not perfect, but it’s potentially better and more reliable. .

Professor Tipton

The same scanners can easily be adapted to perform these two measurements.

The new study argues that taking temperature readings of a person’s fingertip and eye would give a significantly better and more reliable reading and help identify people with fever.

A change in deep body temperature is a critical factor in the diagnosis of disease with an increase of only one degree indicating potential disease.

The many deep body temperature detection methods widely used in hospitals are too expensive, invasive, and time consuming to be widely used outside of hospitals.

Professor Tipton said: “During the SARS epidemic in 2003 there was a need for a rapid and efficient mass screening method and infrared thermography has become and remains the fundamental measure, despite concerns about its reliability.

A 2005 study of 1000 people comparing forehead temperature to three different infrared thermometers yielded different temperatures, ranging from 31 ° C to 35.6 ° C. On their own, infrared thermometer readings varied up to 2. ° C. In another study, more than 80% of 500 people tested by infrared gave a false negative result.

Such differences in skin temperature can be due to a variety of reasons, including whether the person has recently exercised, has an infection, is sunburned, or has recently been drinking alcohol, how far away a person is. a CT scan, how hot or cold the air is, how much fat a person has on their body and even their blood pressure.

Source:

Journal reference:

Mekjavic, IB & Tipton, MJ (2020) Myths and methodologies: degrees of freedom – limitations of infrared thermographic screening for Covid-19 and other infections. Experimental physiology. doi.org/10.1113/EP089260.

[ad_2]

About health

Check Also

10 Easy Ways to a Healthy Diet for children’s

Creating a nutritionally wholesome home is one of the maximum important steps you can take …

27 comments

  1. Hi my friend! I wish to say that this post is awesome, nice written and include almost all significant infos. I’d like to see more posts like this.

  2. This is a really good read for me, Must admit that you are one of the best bloggers I ever saw.Thanks for posting this informative article. Intersting Google ? Look this >> Google Guide

  3. Sick! Just acquired a brand-new Pearl and I can now read your blog on my phone’s browser, it didn’t do the job on my previous 1.

  4. Hi 🙂 My dream retirement would be living in Udaipur, India! I have been to the city and enjoy the individuals and Indian culture. I’d be thrilled to be able to see this film which takes place in the top place in the world! 🙂

  5. A great post, thanks for taking the time to share, continued success to your site in the future!

  6. Przeciwnosci, z ktorymi musimy sie zmierzyc, czesto sprawiaja, ze stajemy sie silniejsi. To, co dzis wydaje sie strata, jutro moze okazac sie zyskiem. – Nick Vujicic

  7. Thank you very much for your interesting text. I have been looking for such message for a really long time. Thank you.

  8. Cool. Do you have a mailing list? This is what I was looking for. Much appreciated! 😉

  9. What I wouldnt give to have a debate with you about this. You just say so many things that arrive from nowhere that Im pretty sure Id have a fair shot. Your weblog is wonderful visually, I mean people wont be bored. But others who can see past the videos and the layout wont be so impressed together with your generic understanding of this subject.

  10. This is a splendid read man. Great Share. However I’m having issue with your RSS . Fail to subscribe. So anybody else having similar RSS problem? Anybody who can assist kindly reply. Thanks in advance

  11. Thank you for the useful post! I would not have gotten this otherwise!

  12. What a good web page! Theres heaps of cool as well as lying on this subject

  13. Thats excellent and very nicely written.Often I tend not to make comments on the web, however Ive to say that this site actually made me want to. Actually excellent little bit of material

  14. Odd , your website shows up with a brownish hue to it, what color is the main color on your site?

  15. Ive been trying to Acquire entry to this website for a while. I used to be using IE then after I tried Firefox, it labored just effective? Simply needed to deliver this to your attention. That is actually good blog. Ive a bunch myself. I really admire your design. I do know that is off matter but,did you make this design yourself,or buy from somewhere? Anyway, in my language, there usually are not much good source like this.

  16. An fascinating dialogue is price comment. I believe that you should write extra on this matter, it may not be a taboo topic but typically people are not enough to speak on such topics. To the next. Cheers

  17. I will surely foreward this post to all of my pals! Its very excellent and a very high-quality read!

  18. Hello! I just would like to give a huge thumbs up for the great info you have here on this post. I will be coming back to your blog for more soon.

  19. Thanks for giving these useful, healthy, educational and as well as unique guidance on your topic.

  20. I am incessantly thought about this, thankyou for putting up.

  21. Well I truly enjoyed studying it. This subject procured by you is very helpful for proper planning.

  22. Well I really liked reading it. This post offered by you is very helpful for accurate planning.

  23. Dude, please tell me that youre going to create additional. I notice you havent written another blog for a while (Im just catching up myself). Your weblog is just too important to be missed. Youve acquired so a lot to say, this kind of knowledge about this subject it would be a shame to see this blog disappear. The internet needs you, man!

  24. I noticed something as well about this topic on different blog.Amazingly, your linear perspective on it is diametrically opposite to what I read previously. Im still reflecting over the conflicting points of view, but Im tipped strongly toward your point of view. And in any case, thats what is so outstanding about modern democracy and the marketplace of ideas onthe internet. Have you considered promoting your blog? add it to SEO Directory right now 🙂 http://www.links.m106.com

  25. I admire the useful facts you offer inside your articles. I will bookmark your weblog and have my kids check up here generally. I am fairly certain theyll learn lots of new things here than anyone else!

  26. This is very fascinating, Youre a very professional blogger. Ive joined your rss feed and look ahead to in quest of more of your excellent post. Additionally, Ive shared your website in my social networks!

Leave a Reply

Your email address will not be published. Required fields are marked *

Open chat
1
Hello
Can we help you?