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Related Concept Videos

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.5K
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,...
1.5K
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

6.9K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
6.9K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

958
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...
958
Temperature Measurement Sites01:14

Temperature Measurement Sites

2.7K
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...
2.7K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

854
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...
854
Assessing Body Temperature - Oral01:14

Assessing Body Temperature - Oral

1.1K
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
1.1K

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Related Experiment Video

Updated: Nov 29, 2025

Fabrication and Testing of Photonic Thermometers
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Fabrication and Testing of Photonic Thermometers

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Recent technological advancements in thermometry.

Daisuke Kokuryo1, Etsuko Kumamoto2, Kagayaki Kuroda3

  • 1Graduate School of System Informatics, Kobe University, Japan.

Advanced Drug Delivery Reviews
|November 20, 2020
PubMed
Summary

Accurate temperature monitoring is crucial for thermal therapy. Noninvasive methods like magnetic resonance (MR) thermometry offer superior imaging of internal body temperatures compared to invasive probes, enabling precise hot-spot detection.

Keywords:
ImagingMagnetic resonance imagingMicrowaveNoninvasivePhotoacousticTemperatureThermometryUltrasound

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Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Therapeutic Monitoring

Background:

  • Invasive thermometry using probes is limited to local temperature detection.
  • Successful thermal therapy relies heavily on accurate temperature measurement.
  • Noninvasive temperature imaging is essential for monitoring internal hot spots.

Purpose of the Study:

  • To review noninvasive thermometry techniques for thermal therapy.
  • To highlight the advantages of magnetic resonance (MR) thermometry in clinical practice.
  • To discuss emerging non-MR techniques like photoacoustic imaging.

Main Methods:

  • Review of established and emerging noninvasive thermometry techniques.
  • Focus on magnetic resonance (MR) imaging, specifically the proton resonance frequency shift method.
  • Mention of techniques including X-ray computed tomography, microwave tomography, echo sonography, and photoacoustic imaging.

Main Results:

  • MR thermometry, particularly the proton resonance frequency shift method, is the only noninvasive technique currently in clinical practice.
  • This method demonstrates consistent temperature sensitivity in aqueous tissues and is observable with standard clinical scanners.
  • New MR techniques are being developed to address tissue motion, and fat thermometry using relaxation times has also been explored.

Conclusions:

  • Noninvasive thermometry is vital for effective thermal therapy and precise hot-spot detection.
  • MR thermometry is the current clinical standard due to its reliability and compatibility with existing scanners.
  • Advancements in MR thermometry and novel techniques like photoacoustic imaging promise further improvements in noninvasive temperature monitoring.