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- The normal tympanic temperature is usually 0.3–0.6°C higher than an oral temperature (OER #1). It is accurate because the tympanic membrane shares the same vascular artery that perfuses the hypothalamus (OER #1).
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Ear thermometers measure temperature from the tympanic membrane using infrared sensors and also aim to measure core body temperature, since the blood supply of this membrane is directly shared with the brain.
The temperature can be measured in various locations on the body which maintain a fairly stable temperature (mainly oral, axillary, rectal, tympanic, or temporal). The normal temperature varies slightly with the location; an oral reading of 37 °C does not correspond to rectal, temporal, etc. readings of the same value.
- Measures body temperature
Apr 9, 2019 · The calculated ranges (mean ± 2 standard deviations) were 36.32–37.76 (rectal), 35.76–37.52 (tympanic), 35.61–37.61 (urine), 35.73–37.41 (oral), and 35.01–36.93 (axillary). Older adults (age ≥60) had lower temperature than younger adults (age <60) by 0.23°C, on average. There was only insignificant gender difference.
- Ivayla I Geneva, Ivayla I Geneva, Brian Cuzzo, Tasaduq Fazili, Tasaduq Fazili, Waleed Javaid
- 10.1093/ofid/ofz032
- 2019
- 2019/04
Sep 14, 2020 · Methods for measuring body temperature. Methods for measuring body temperature include: Tympanic thermometer – commonly used in clinical practice (Fig 1); Single-use chemical dot thermometer – commonly used with infants and small children; Rectal thermometer – frequently used when hypothermia is suspected;
Feb 9, 2019 · This article reviews the historical development and up-to-date state of thermometric technologies for measuring human body temperature (BT) from two aspects: measurement methodology and significance interpretation.
- Wenxi Chen
- 2019
Tympanic Temperature. The normal tympanic temperature is usually 0.3–0.6°C higher than an oral temperature (OER #1). It is accurate because the tympanic membrane shares the same vascular artery that perfuses the hypothalamus (OER #1). A tympanic thermometer is shown in Figure 2.4.
Upon arrival at the hospital, the tympanic temperature in the treatment group was significantly lower compared to the temperature in the control group, despite similar baseline temperatures (34.2 ± 1.5°C vs. 35.5 ± 0.9°C, p < 0.001), resulting in an average temperature drop of 1.3°C in 26 minutes.
