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Related Concept Videos

Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

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Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
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Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

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Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
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Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

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Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
912
Temperature Measurement Sites01:14

Temperature Measurement Sites

2.6K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
2.6K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

808
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's...
808
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

905
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
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Toward Non-Invasive Core Body Temperature Sensing.

Katrina Guido1, Alexandra Bringer1, Asimina Kiourti1

  • 1ElectroScience Laboratory, Department of Electrical and Computer Engineering, The Ohio State University Columbus, OH, USA.

Proceedings. USNC-URSI Radio Science Meeting
|March 11, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a new radiometry method using bio-matched antennas for accurate, non-invasive core body temperature monitoring. The technique adapts models from geophysics to analyze electromagnetic wave penetration in layered tissues.

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Area of Science:

  • Biomedical Engineering
  • Electromagnetics
  • Medical Physics

Background:

  • Accurate core body temperature monitoring is crucial for clinical management.
  • Existing methods for core temperature measurement have limitations in accuracy, invasiveness, or continuous monitoring.
  • Understanding electromagnetic wave interaction with biological tissues is key for developing novel sensing modalities.

Purpose of the Study:

  • To investigate a novel radiometry technique for non-invasive core temperature monitoring.
  • To evaluate the feasibility of using bio-matched antennas (BMAs) and broadband measurements.
  • To adapt radiative transfer models for layered biological tissues.

Main Methods:

  • Utilized bio-matched antennas (BMAs) for electromagnetic wave transmission and reception.
  • Performed broadband measurements to capture frequency-dependent tissue properties.
  • Adapted radiative transfer models, originally developed for geophysical media, for layered biological tissues.
  • Employed forward modeling to simulate temperature distributions based on electromagnetic properties.

Main Results:

  • Preliminary modeling results demonstrated the theoretical feasibility of the approach.
  • Initial experimental data supported the potential for accurate temperature estimation.
  • The study confirmed that electromagnetic wave penetration depth is frequency-dependent and influenced by tissue dielectric properties.

Conclusions:

  • The novel radiometry technique shows promise for non-invasive and accurate core temperature monitoring.
  • Adaptation of geophysical modeling techniques is effective for biological applications.
  • Further research and validation are warranted to translate this technique into clinical practice.