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Related Concept Videos

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.4K
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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Temperature Measurement Sites01:14

Temperature Measurement Sites

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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...
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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...
858
Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
995
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

772
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...
772

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Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
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Outdoor-Useable, Wireless/Battery-Free Patch-Type Tissue Oximeter with Radiative Cooling.

Min Hyung Kang1, Gil Ju Lee1, Joong Hoon Lee1

  • 1School of Electrical Engineering and Computer Science (EECS) Gwangju Institute of Science and Technology (GIST) 123, Cheomdangwagi-ro, Bukgu Gwangju 61005 Republic of Korea.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|May 24, 2021
PubMed
Summary
This summary is machine-generated.

This study presents a wireless, battery-free tissue oximeter (PTO) with radiative cooling for accurate outdoor measurements. The novel nano/microvoids polymer (NMVP) ensures reliable oxygen saturation readings under sunlight, benefiting athlete training.

Keywords:
daytime radiative coolingnonmetallic/flexible radiative cooleroutdoor useable oximeterthermal managementwearable optoelectronics

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Area of Science:

  • Wearable electronics and optoelectronics
  • Thermal management solutions
  • Biomedical sensing technologies

Background:

  • Accurate signal acquisition and thermal comfort are crucial for wearable devices.
  • Outdoor solar heat gain negatively impacts the performance of wearable devices like oximeters.
  • Existing wearable oximeters struggle with efficiency and accuracy under direct sunlight.

Purpose of the Study:

  • To develop a wireless, battery-free, and thermally regulated patch-type tissue oximeter (PTO) for reliable outdoor measurements.
  • To introduce a novel radiative cooling structure to mitigate solar heat gain in wearable devices.
  • To demonstrate the feasibility of effective thermal management for wearable optoelectronics in outdoor environments.

Main Methods:

  • Integration of a nano/microvoids polymer (NMVP) with radiative cooling properties into a PTO.
  • NMVP fabrication by combining two perforated polymers to minimize solar absorption and maximize thermal emission.
  • Comparative testing of NMVP-integrated PTO against a standard black-encapsulated PTO under various outdoor conditions.

Main Results:

  • The optimized NMVP achieved sub-ambient cooling of 6°C during daytime, regardless of weather conditions (clear, cloudy, high humidity).
  • NMVP-integrated PTO maintained skin temperature within ≈1°C under sunlight, while a standard PTO experienced over 40°C increase.
  • Thermally protected PTO provided accurate tissue oxygen saturation (StO2) readings (≈80%), unlike the standard PTO (≈67%) under solar load.

Conclusions:

  • A wireless, battery-free PTO with NMVP-based radiative cooling effectively manages thermal loads under sunlight.
  • This technology ensures accurate tissue oxygenation measurements outdoors, overcoming limitations of solar energy gain.
  • The presented strategy offers a viable solution for thermal management in wearable devices for diverse outdoor applications, including athlete training.