Heat/ Temperature Flashcards
What is the difference between heat and temperature?
heat is a form of energy that can transfers from hot body to cold body, whereas temperature is the degree of hotness and coolness of a body.
What are these measured in?
temperature= kelvin
heat= joule
Do you know how heat is produced in the body?
Energy released from cellular metabolism produced heat in the body
Cellular metabolism refers to the processes within cells that generate and regulate heat production.
The heat produced during these metabolic processes helps maintain the body’s temperature and supports essential physiological functions.
In a hospital setting what patients are at risk for having a low body temperature and why?
Patients may be admitted with hypothermia following a drowning incident or being exposed to low temperatures.
- Patients lose heat during surgeries as body cavities are open and exposed allowing body heat to escape, theaters are often cool to reduce microbial growth.
- Patients may have very little body fat, for example, neonates, the elderly or patients with conditions that have affected fat stores or metabolic rates.
By using heat transfer measures how would we bring their body temperature to within the core body temperature range?
Conduction: Heat is transferred from object to object as they touch
- Radiation: Heat is transferred by rays from an object to its surroundings
- Convection: Heat is transferred in water or air currents
- Evaporation: Heat is lost from a surface as air currents move over liquid. sweat
What is the core body temperature range?
36.2 to 37.2 degrees Celsius.
What are the sites used to measure temperature?
oral measurement
axillary measurement
tympanic temperature
Thermoregulation
How the body is regulating your heat- if you’re too hot or too cold, maintain the homeostasis of the core Body temperature
Humans produce heat in a variety of ways, the endocrine system releases hormones to speed up our metabolism, causing heat to be released from these chemical reactions, muscles contract rapidly (shivering) to produce heat and the conversion of fat cells also produces heat.
How can we increase a body temperature > Conduction, convection, Radiation Example and how do we promote heat:
Conduction: To increase body temperature through conduction, you can come into direct contact with warm objects or surfaces. For example, sitting next to a warm fireplace or using a heating pad can transfer heat to your body through conduction.
Convection: To increase body temperature through convection, you can expose yourself to warm air currents or sit in a warm draft. For example, sitting near a heater or using a warm air blower can help increase body temperature through convection.
Radiation: To increase body temperature through radiation, you can expose yourself to a heat source, such as sitting in direct sunlight or near a warm fire. The heat radiated by these sources can be absorbed by your body, raising your temperature.
