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basal body temperature |
Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.15 sec. |
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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. 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. basal body temperature, the temperature of the body under conditions of absolute rest, taken orally or rectally, after sleep and before the patient does anything, including getting out of bed, smoking a cigarette, moving around, talking, eating, or drinking. basal body temperature, n temperature of the body determined in the morning, after sleeping and before any activity. basal body temperature Reproduction medicine The lowest possible normal body temperature, which usually occurs in the morning before getting out of bed; measurement of BBT is a popular method for determining whether ovulation has
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Other common methods estimate the date of ovulation by measuring midcycle events such as a rise in basal body temperature (Stanislaw & Rice, 1988) or changes in cervical mucus characteristics, which indicate a shift from an estrogen to a progesterone predominant profile (reviewed in Stern & McClintock, 1995). They found that only 2% of enrolled women reported actively trying to conceive during the 3-month study period, 46% reported using oral contraceptives or intrauterine devices, 24% reported using barrier methods or monitoring their cervical mucus and basal body temperature (BBT) to avoid pregnancy, 18% reported being sexually inactive, 8% reported being sexually active but not using contraception, and 2% reported being infertile. The basal body temperature rise is the single most accurate way of dating the time of conception; it is therefore more accurate than using the Last Menstrual Period (LMP) computation. |
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