temperature (redirected from Nonpermissive temperature)

temperature /tem·per·a·ture/ (tem´per-ah-chur)

1. an expression of heat or coldness in terms of a specific scale; a measure of the average kinetic energy due to thermal agitation of the particles in a system. Symbol .

2. the level of heat natural to a living being.

3. colloquial term for fever.

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absolute temperature  (T ) that reckoned from absolute zero (−273.15°C or −459.67°F), expressed on an absolute scale.

basal body temperature  (BBT) the temperature of the body under conditions of absolute rest.

core temperature  the temperature of structures deep within the body, as opposed to peripheral temperature such as that of the skin.

critical temperature  that below which a gas may be converted to a liquid by increased pressure.

normal temperature  that of the human body in health, about 98.6°F or 37°C when measured orally.

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tem·per·a·ture (tmpr--chr, -chr, tmpr-)

n. Abbr. T, t, temp.

1. The degree of hotness or coldness of a body or an environment.

2. A specific degree of hotness or coldness as indicated on or referred to a standard scale.

3. The degree of heat in the body of a living organism, usually about 37.0°C (98.6°F) in humans.

4. An abnormally high condition of body heat caused by illness; a fever.

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temperature (T)

[tem′pə(ri)chər]

Etymology: L, temperatura

1 a relative measure of sensible heat or cold.

2 (in physiology) a measure of sensible heat associated with the metabolism of the human body, normally maintained at a constant level of 98.6° F (37° C) by the thermotaxic nerve mechanism that balances heat gains and heat losses.

3 

Usage notes: informal.

a fever.

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temperature [tem´per-ah-chur]

the degree of sensible heat or cold, expressed in terms of a specific scale. See Table of Temperature Equivalents in the Appendices. Body temperature is measured by a clinical thermometer and represents a balance between the heat produced by the body and the heat it loses. Though heat production and heat loss vary with circumstances, the body regulates them, keeping a remarkably constant temperature. An abnormal rise in body temperature is called fever.

Normal Body Temperature. Body temperature is usually measured by a thermometer placed in the mouth, the rectum, or the auditory canal (for tympanic membrane temperature). The normal oral temperature is 37° Celsius (98.6° Fahrenheit); rectally, it is 37.3° Celsius (99.2° Fahrenheit). The tympanic membrane temperature is a direct reflection of the body's core temperature. These values are based on a statistical average. Normal temperature varies somewhat from person to person and at different times in each person. It is usually slightly higher in the evening than in the morning and is also somewhat higher during and immediately after eating, exercise, or emotional excitement. Temperature in infants and young children tends to vary somewhat more than in adults.

Temperature Regulation. To maintain a constant temperature, the body must be able to respond to changes in the temperature of its surroundings. When the outside temperature drops, nerve endings near the skin surface sense the change and communicate it to the hypothalamus. Certain cells of the hypothalamus then signal for an increase in the body's heat production. This heat is conducted to the blood and distributed throughout the body. At the same time, the body acts to conserve its heat. The arterioles constrict so that less blood will flow near the body's surface. The skin becomes pale and cold. Sometimes it takes on a bluish color, the result of a color change in the blood, which occurs when the blood, flowing slowly, gives off more of its oxygen than usual. Another signal from the brain stimulates muscular activity, which releases heat. Shivering is a form of this activity—a muscular reflex that produces heat.



When the outside temperature goes up, the body's cooling system is ordered into action. Sweat is released from sweat glands beneath the skin, and as it evaporates, the skin is cooled. Heat is also eliminated by the evaporation of moisture in the lungs. This process is accelerated by panting.

An important regulator of body heat is the peripheral capillary system. The vessels of this system form a network just under the skin. When these vessels dilate, they allow more warm blood from the interior of the body to flow through them, where it is cooled by the surrounding air.

Abnormal Body Temperature. Abnormal temperatures occur when the body's temperature-regulating system is upset by disease or other physical disturbances. fever usually accompanies infection and other disease processes. In most cases when the oral temperature is 37.8°C (100°F) or over, fever is present. Temperatures of 40°C (104°F) or over are common in serious illnesses, although occasionally very high fever accompanies an illness that causes little concern. Temperatures as high as 41.7°C (107°F) or higher sometimes accompany diseases in critical stages. Subnormal temperatures, below 35.6°C (96°F) occur in cases of collapse; see also symptomatic hypothermia.

absolute temperature (T) that reckoned from absolute zero (−273.15°C), expressed on an absolute scale.

basal body temperature (BBT) the temperature of the body under conditions of absolute rest; it has a slight sustained rise during the luteal phase of the menstrual cycle and can be used as an indirect indicator of when ovulation has occurred.

body temperature the temperature of the body of a human or animal; see temperature.

core temperature the temperature of structures deep within the body, as opposed to peripheral temperature such as that of the skin.

critical temperature that below which a gas may be converted to a liquid by increased pressure.

normal temperature the body temperature usually registered by a healthy person, averaging 37°C (98.6°F).

risk for imbalanced body temperature a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as a state in which an individual is at risk of failure to maintain body temperature within the normal range.

subnormal temperature temperature below the normal. See also symptomatic hypothermia.

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temperature,

n the degree of sensible heat or cold.

temperature, body,

n the measurable temperature of the body. Normal range of variations, 98°F to 99°F (35.5°C to 37°C) orally and 99°F to 100°F (37°C to 38°C) rectally, with much wider ranges for skin.

temperature, body, regulation,

n homeostasis of body temperature. Results from a balance of heat production (external heat plus heat from muscle contraction and other chemical processes) and heat loss (through lungs, sweating, surface radiation, and excretions).

temperature, casting,

n the required degree of heat necessary to bring a metal to proper fluidity for introduction into a refractory mold.

temperature, core,

n the temperature of the internal tissues of the body, this temperature stays stable, unlike the temperature of the outer body surfaces, which are affected by the environment.

temperature, recrystallization,

n the lowest temperature at which the distorted grain structure of a cold-worked metal is replaced by a new, strain-free grain structure during prolonged annealing. Time, purity of metal, and prior deformation are important factors.

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temperature

the degree of sensible heat or cold, expressed in terms of a specific scale. See also hypothermia, hyperthermia.

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absolute temperature

that reckoned from absolute zero (−459.67°F or −273.15°C).

air temperature

the temperature of the surrounding air as measured by a dry-bulb thermometer.

ambient temperature

temperature of the immediate environment.

body temperature

a prime technique for assessing health status of a patient. Always a rectal temperature. Average temperatures above which hyperthermia, pyrexia or fever can be said to occur are listed under pyrexia.

critical temperature

1. that below which a gas may be converted to a liquid by pressure.

2. the environmental temperature at which the body is unable to maintain a constant body temperature and at which heat production must be increased (cold temperatures) or at which heat loss must be increased (high temperatures).

effective temperature

the combination of air temperature, humidity and wind speed. See also temperateness index.

environmental temperature

air temperature.

nonpermissive temperature

one at which a conditional gene mutation is nonfunctional. See also temperature-sensitive mutation.

normal body temperature

that usually registered by a healthy animal. See pyrexia.

permissive temperature

one at which a conditional gene mutation can express its normal function. See also temperature-sensitive mutation.

premortal temperature fall

the sudden fall in body temperature of a previously fevered animal just before death.

rectal temperature

the body temperature as measured by a rectal thermometer which has been in situ and in contact with the mucosa of the rectum with the anal sphincter tightly closed for at least 30 seconds. Alternative equipment is a dipolar electrode in a rectal probe.

temperature stress

exposure to excessively high or low environmental temperature.

windchill temperature

a combination of wind velocity and air temperature. See also effective temperature (above).

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Patient discussion about temperature.

Q. I feel that my temperature is rising, I am worried as it was told to me to not take on any medicine? I am currently in my 1st trimesters and last week I had fever over 100. I took paracetamol and I got well. Again today I feel that my temperature is rising and it has gone pretty high. My body is on high pain l and I think I must meet a doctor this time. What you guys have to say……I am worried as it was told to me to not take on any medicine but I had taken one ………what can happen?

A. First, congratulations for the pregnancy. I agree with falseact, you should see your OB-GYN doctor for a consult. But here I paste a data that might be useful to calm your worry..

Acetaminophen or paracetamol labeling, like all OTC medications, instructs consumers who are pregnant or nursing a baby to contact their doctor before use. Acetaminophen or paracetamol has been used for over 40 years and available data indicate that acetaminophen in therapeutic doses does not adversely affect the pregnant mother or the fetus.

Q. what is the red line when your body temperature drops before you are getting hypothermia?

A. Hypothermia is a condition in which an organism's temperature drops below that required for normal metabolism and function. For people in stage 1 hypethermia, body temperature drops by 1-2°C below normal temperature (35-36°C). Mild to strong shivering occurs. In stage 2, body temperature drops by 2-4°C (35-33 degrees). Shivering becomes more violent. Muscle mis-coordination becomes apparent and movements are slow and labored and there is mild confusuin. In stage 3, body temperature drops below approximately 32 °C (89.6 °F). Shivering usually stops and there's difficulty speaking, sluggish thinking, and amnesia start to appear. Cellular metabolic processes shut down. This is life threatening.