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Decreased Body Temperature

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...

Methods of reducing fever

Methods of reducing fever

The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:

Thermosensation

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Factors Affecting Body Temperature

Factors Affecting Body Temperature

As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:

Increased Body Temperature

Increased Body Temperature

A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in response to an infection or illness.

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Related Experiment Video

Updated: Jun 19, 2026

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Cold injury.

Wm J Mohr¹, Kamrun Jenabzadeh, David H Ahrenholz

¹The Burn Center, Department of Trauma and General Surgery, Regions Hospital, Mail Stop 11105C, 640 Jackson Street, St. Paul, MN 55101, USA. william.j.mohr@healthpartners.com

|October 6, 2009

Summary

True frostbite injury is mainly caused by microvascular thrombosis after reperfusion, not the initial freeze. Newer interventions targeting this process offer improved treatment for frostbite, especially in upper extremities.

Area of Science:

Medical research
Pathophysiology
Vascular biology

Background:

Direct freeze injury contributes minimally to overall frostbite tissue damage.
Rapid rewarming, a long-standing intervention, primarily addresses tissue crystallization.
Microvascular thrombosis post-reperfusion is the key pathological process in frostbite.

Purpose of the Study:

To present a scientific approach to treating frostbite injuries of the upper extremities.
To highlight the central role of cold-damaged endothelial cells in frostbite outcomes.
To discuss newer interventions for combating post-reperfusion thrombosis in frostbite.

Main Methods:

Review of frostbite pathophysiology.
Analysis of microvascular thrombosis mechanisms.

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Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

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Related Experiment Videos

Last Updated: Jun 19, 2026

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Published on: June 8, 2017

Discussion of novel therapeutic strategies.

Main Results:

The primary damage in frostbite stems from reperfusion injury and subsequent microvascular thrombosis.
Endothelial cell damage is critical in determining the severity of frostbite.
Emerging treatments aim to mitigate thrombosis and improve outcomes.

Conclusions:

Frostbite management should focus on preventing microvascular thrombosis rather than solely on rewarming.
Understanding endothelial cell dysfunction is key to developing effective frostbite therapies.
This article provides a framework for a scientific approach to upper extremity frostbite.