There are many kinds of digital. Since catheters are highly invasive the generally accepted alternative for measuring core body temperature is through rectal measurements.

1pcs Multi Site Use Clinical Thermometer Rectal Armpit Body
Rectal body temperature measurement. Rectal temperature is expected to be approximately 1 fahrenheit or 055 celsius degree higher than an oral temperature taken on the same person at the same time. An electronic pacifier thermometer compared with rectal measurements had a sensitivity of only 72 in detecting fever to many false negatives and if 05 f were added to the pacifier. Bae dd brown pl kiyatkin ea. The most accurate method is rectal and vaginal. A comparative study on temperature accuracy between tympanic rectal and axillary sites. Body temperature readings vary depending on where on the body a person takes the measurements.
The normal rectal temperature of a child is between 97 and 100 f 360 to 377 c. Contactless digital forehead infrared body temperature measurement thermometer. It causes less discomfort than a rectal thermometer and is less disturbing to a newborn. A newer method to measure temperature called temporal artery thermometry is also considered very accurate. Digital infrared non contact forehead thermometer gun temperature measurement s. Rectal readings are higher than oral readings while armpit readings tend to be lower.
The normal axillary temperature range is approximately between 347 c and 373 c. It is a small hand held device with a window showing your childs temperature in numbers. Digital oral thermometer rectal or underarm body temperature measurement. The oral method of measuring basal body temperature the thermometer is placed under the tongue for about 8 minutes digital thermometer until sound signal. A digital thermometer is used to take a rectal temperature. In adult patients the temperature of an axillary measurement is lower than a rectal measurement up to 19 c.
What kind of thermometer is used to take a rectal temperature. Iranian journal of medical sciences 331 49 53. It measures the temperature of the blood flowing through the temporal artery on the forehead. With the rectal and vaginal methods the thermometer is immersed 2 4cm deep for about 5 minutes digital thermometer until sound signal. Although the rectal mucosa remains the traditional site for measuring body temperature in dogs an increasing number of clinicians have been using auricular temperature to estimate core body temperature. In this study 88 mature healthy dogs had body temperatures measured with auricular and rectal thermometers.
However this is only possible up to a certain body mass and this type of measurement also takes a long time. 3499 599 pp. Procedure of rectal temperature measurement affects brain muscle skin and body temperatures and modulates the effects of intravenous cocaine.