Which of the following method is the best predictor for ovulation in a female infertility patient during a menstrual cycle
Correct Answer: Hormonal Study
Description: In the anovulatory cycle, plasma progesterone reaches a peak of 15ng/ml at mid-luteal phase (22-23days).
Basal body temperature (BBT) falls at the time of ovulation by about 1/2degree. During the progestational half of cycle, the temperature is slightly raised above the preovulatory level. But it is now obsolete because:
Tedious daily recording
Not very accurate
Better modalities are available
In endometrial biopsy endometrium from the uterus is curetted preferably 1 or 2days prior to the onset of menstruation. Histological examination done for secreatory changes. Now a days endometrial biopsy is omitted as a routine investigation of infertility. Only used in suspected tubercular endometritis
Fern test: cervical mucus is examined under a low power microscope. During estrogenic phase, it shows a charecteristic fern patten which disappears after ovulation
Category:
Gynaecology & Obstetrics
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