II. Indication
- Ovulation Indicator
III. Technique
- More accurate Thermometers are available for BBT
- Take central Temperature same time daily at mid-cycle
- Oral or
- Rectal or
- Vaginal
- Start Temperature reading several days before Ovulation
- Continue readings for at least 12 Luteal Phase days
- Plot on Temperature curve
- Y-Axis: Temperature from 97 to 101 F in 0.1 steps
- X-Axis: Days of the Menstrual Cycle
- Record days of coitus and menstrual days
IV. Interpretation
- Temperature rise of 0.3 to 1.0 F signals Ovulation
-
Ovulation usually occurs 24 hours before rise
- Helpful retrospectively
- Not useful for conception during current cycle
- Plotting 2-3 cycles is all that is required
V. Efficacy: Inaccurate method
VI. References
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Related Studies
Concepts | Finding (T033) |
SnomedCT | 300076005 |
English | body basal temperature, basal body temperatures, basal body temperature, Basal body temperature, Basal body temperature (observable entity) |
Spanish | temperatura corporal basal (entidad observable), temperatura corporal basal |