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Related Concept Videos

Decreased Body Temperature01:29

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by sustained extreme cold exposure, and severe...
Thermoregulation01:26

Thermoregulation

The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
Masonry in Cold and Hot Weather Conditions01:21

Masonry in Cold and Hot Weather Conditions

In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
Other key practices include keeping masonry units and sand dry and...
Body Temperature01:07

Body Temperature

Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
Body Temperature01:25

Body Temperature

The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Cold Weather Concreting01:27

Cold Weather Concreting

When freshly poured concrete is exposed to freezing temperatures before it has set, the water within the concrete can freeze. This expansion disrupts the setting process, delays chemical reactions necessary for hardening, and increases the volume of pores within the hardened concrete, which weakens its overall structure. If the concrete manages to reach an appreciable strength before it freezes, the damage can be somewhat mitigated.
To counteract the negative impacts of cold weather, ensuring...

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Related Experiment Video

Updated: Jul 4, 2026

Short-Duration Hypothermia Induction in Rats using Models for Studies examining Clinical Relevance and Mechanisms
05:00

Short-Duration Hypothermia Induction in Rats using Models for Studies examining Clinical Relevance and Mechanisms

Published on: March 3, 2021

Brrrrrrrrrrrr.

Felicia Cox

    Journal of Perioperative Practice
    |June 27, 2008
    PubMed
    Summary
    This summary is machine-generated.

    Mild hypothermia is common in patients undergoing anesthesia, surgery, and recovery. This review explores inadvertent hypothermia, a significant patient safety concern in perioperative care.

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    Last Updated: Jul 4, 2026

    Short-Duration Hypothermia Induction in Rats using Models for Studies examining Clinical Relevance and Mechanisms
    05:00

    Short-Duration Hypothermia Induction in Rats using Models for Studies examining Clinical Relevance and Mechanisms

    Published on: March 3, 2021

    Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats
    04:55

    Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats

    Published on: June 17, 2020

    Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine
    08:16

    Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine

    Published on: March 13, 2017

    Area of Science:

    • Anesthesiology
    • Perioperative Medicine
    • Patient Safety

    Background:

    • Inadvertent hypothermia is a frequent complication in the operating room, affecting patients during anesthesia, surgery, and recovery.
    • Maintaining normothermia is crucial for patient outcomes, yet hypothermia remains prevalent across various surgical settings.

    Discussion:

    • This literature review examines the causes, consequences, and prevention strategies for inadvertent hypothermia.
    • The article highlights the importance of awareness and proactive measures to mitigate hypothermia in perioperative care.

    Key Insights:

    • Mild hypothermia affects a significant number of patients in anesthetic rooms, operating theatres, and recovery units.
    • Student ODP Robert Nunney's literature review underscores the persistent challenge of inadvertent hypothermia.

    Outlook:

    • Further research and implementation of evidence-based guidelines are essential for improving patient temperature management.
    • Enhanced vigilance and standardized protocols can help reduce the incidence and impact of perioperative hypothermia.