Ovulation can be diagnosed by all except:
Method to document ovulation Feile window : it is the 6th day interval ending on the day of ovulation but not after ovulation. Basal body temperature : ovulation is assumed after 3 consecutive days of raised temperatures. It involvew daily recording of oral or rectal temperature using a BBT thermometer before the patient arises,eats or drinks. The secretion of Progesterone following ovulation causes a temperature increase of about 0.5-1 degree F over the baseline temperature of 97-98.8 degree F that is typically recorded during the follicular phase of menstrual cycle. It produces a characteristic biphasic pattern in women with ovulatory cycles. Limitations : inability to prospectively predict ovulation and its frequent false negative results. Smoking and irregular sleep patterns can interfere with accurate testing. Cervical mucus : around ovulation the secretions are slippery and clear and volume of cervical mucus peaks 2-3 days around ovulation. LH monitoring : Once the LH surge is detected, ovulation may occur within next 48 hours. Mid Luteal serum progesterone : level above 3 ng/ml typically confirms ovulation. ultrasound monitoring : ovulation is charectarised by decrease in the size and crenated margins at the site of monitored ovarian follicle and appearance of fluid in the cul de sac. Reference: Novak's Textbook of gynaecology 15th edition page no 1151
Measuring day 14 serum progesterone
b.Rise in basal body temperature in the second half of cycle
Study of cervical mucus
Endometrial histology
Infertility