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Related Concept Videos

Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

15.3K
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...
15.3K
Temperature Measurement Sites01:14

Temperature Measurement Sites

4.2K
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...
4.2K
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

1.8K
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...
1.8K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

1.6K
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...
1.6K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

2.1K
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,...
2.1K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

1.4K
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...
1.4K

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Related Experiment Video

Updated: Apr 16, 2026

Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation
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Using axillary temperature to approximate rectal temperature in newborns.

Björn Lantz1, Cornelia Ottosson2

  • 1Department of Technology Management and Economics, Chalmers University of Technology, Gothenburg, Sweden.

Acta Paediatrica (Oslo, Norway : 1992)
|March 18, 2015
PubMed
Summary

The difference between axillary and rectal temperature in newborns varies. Adding 0.3°C or 0.4°C to axillary temperature provides an acceptable approximation for premature and full-term infants, respectively.

Keywords:
Axillary temperatureNeonateRectal temperatureThermometry methods

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Area of Science:

  • Neonatal care
  • Pediatric thermoregulation

Background:

  • Accurate temperature measurement is crucial for neonatal care.
  • Axillary and rectal temperatures in newborns can differ due to various factors.

Purpose of the Study:

  • To investigate factors influencing the difference between axillary and rectal temperatures in newborns.
  • To develop a formula for estimating rectal temperature from axillary measurements.

Main Methods:

  • Simultaneous rectal and axillary temperature measurements were taken from 175 newborns (24-42 weeks gestational age).
  • Multiple regression analysis was used to identify significant factors affecting temperature differences.

Main Results:

  • Premature infants showed a smaller mean difference (0.33°C) than full-term infants (0.43°C).
  • For premature infants, chronological age, time of day, and axillary temperature were significant factors.
  • For full-term infants, only axillary temperature was a significant factor.

Conclusions:

  • A complex formula to estimate neonate rectal temperature from axillary temperature is possible but impractical.
  • Adding 0.3°C for premature and 0.4°C for full-term infants to axillary temperature provides acceptable approximations.