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Etymology: L, rectus, straight, temperatura
body temperature as measured by a clinical thermometer placed in the rectum. Rectal temperatures average 0.5° F to 0.75° F (0.3° C to 0.4° C) higher than oral temperatures.
The temperature obtained by inserting a thermometer into the anal canal to a depth of at least 112 in (3.8 cm) and holding it in place for 3 to 5 min or, for electronic thermometers, according to the manufacturer's directions. This method should not be used following a rectal operation or if the rectum is diseased. A rectal temperature is more accurate than either oral or axillary temperatures. It averages about 1°F (0.56°C) higher than the oral temperature and approx. 1.5°F (0.84°C) higher than the axillary temperature.See: Temperature :Rectal
See also: temperature
pertaining to the rectum.
see rectovaginal fistula.
see fecal impaction.
massage of the accessory sex glands, a method of semen collection in dogs.
occurs especially in cows and mares in late pregnancy. No feces are passed and the rectum is distended with feces, and there is no peristalsis during their manual removal. Dogs may show posterior paresis.
see colorectal polyp.
used in pregnancy diagnosis in ewes and in electroejaculation.
the wall is perforated into the peritoneal cavity. Death occurs quickly as a result of endotoxic shock because of the absorption of enteric toxins through the peritoneum.
stenosis of the rectum occurs in dogs, presumably resulting from trauma and anorectal disease, and in pigs following local ulceration caused by infection with Salmonella spp. Abnormal abdominal distention, small diameter feces and straining result.
most common in mares in association with manual rectal examinations. The mucosa is damaged but the wall is not ruptured. Leads to perirectal abscessation and subsequent peritonitis.
see rectal temperature.
the degree of sensible heat or cold, expressed in terms of a specific scale. See also hypothermia, hyperthermia.
that reckoned from absolute zero (−459.67°F or −273.15°C).
the temperature of the surrounding air as measured by a dry-bulb thermometer.
temperature of the immediate environment.
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.
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).
the combination of air temperature, humidity and wind speed. See also temperateness index.
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.
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.
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.
exposure to excessively high or low environmental temperature.
a combination of wind velocity and air temperature. See also effective temperature (above).