Here are a few more that I found mostly via the internet archive book collection. They are more general home or family health care books.
There is the “The complete home medical encyclopedia” by Dr. Harold Thomas Hyman from 1993. He promotes rectal temperatures for children (and adults) of all ages and disparages oral and underarm temperatures as unreliable.
In this section he is suggesting getting a base line set of temperatures so that you know how their temperatures normally vary:
Page 320
"Some day when all is quiet in your sector and your youngsters are feeling fit and amiable, plan to take rectal readings at 8 a.m., noon, 4 p.m. and 8 p.m."
"Do not be bullied into taking mouth readings, which are about a degree lower and more apt to be inaccurate (accidental or deliberate separation of the lips, etc.)"
"Do note let your Continental friends persuade you that it's more elegant to take readings in the armpit. These are more prone to error than mouth readings."
Though out the book he refers to using rectal temperatures.
Page 210
There is a vast difference between "feeling chilly" and experiencing a true chill or rigor. Nevertheless, it is wise to take the rectal temperature of any person who complains of chilliness and to repeat the reading if the complaint persists.
Page 228
Do not continue unsupervised home treatment if rectal temperature rises beyond 101° F.
Page 254
But, if cough persists or recurs, record your rectal temperature for 24 hours; collect a sputum specimen; and see your doctor.
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The 1979 “Symptoms : the complete home medical encyclopedia” suggests that
“Oral readings are unreliable in children and those who breathe primarily through the mouth.”
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The 2000 “Complete home guide to medical illnesses : 2100 diseases described and explained” by Warwick Carter discusses taking temperatures for suspected hypothermia:
Page 265
INVESTIGATIONS: Measuring the temperature using a rectal (through the anus) thermometer. The skin temperature and mouth temperature are often inaccurate.
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Finally we have the 2021 “Please Just Take a Rectal Temperature: Facts, Tricks, and Skills to Make Parenting Easier” by Stewart Tatem MD that is on Amazon. In it he he discourages parents from using new technologies instead of a simple digital oral / rectal thermometer.
Quotes taken from the introduction section:
“Take the title of this book for example. I can’t tell your how many parents come into my office with a sick baby saying something like this”
“I used one of those ear/forehead/pacifier thermometers, but I don’t know if it’s accurate of if I am using it right."
They are using that thermometer because it is easy, howecer these devices will give incorrect readings if not used properly …..
A cheap, simple, digital recal thermometer easily gives accurate information.
It’s not hard to take a rectal temperature. It doesn’t hurt. It’s not “violating” them. As one of my colleagues says, "" The stool that comes out is wider than the probe for the thermometer. What's the big deal?"
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I have some quotes from nursing manuals from the 50s through the 70s that I am collecting for a later post. I am not sure if they should be in a separate thread.