Subfertility Flashcards
What should you advise people who are concerned about their fertility?
Vaginal sexual intercourse every 2-3 days optimises the chance of pregnancy
What proportion of couples conceive in 1 year if the woman is under 40 and the have regular sex without contraception?
80%
What proportion of women under 40 conceive using intrauterine insemination within 6 cycles?
50%
What should men be informed about alcohol consumption?
Remaining within DoH recommended limits is unlikely to effect semen quality, however excessive alcohol intake is detrimental to semen quality
What should women be informed about alcohol consumption?
Drink no more than 1/2 units once or twice a week and avoid intoxication
Does smoking affect fertility in men?
Yes
Does passive smoking affect fertility in women?
Yes
Does caffeine affect fertility?
No
How does a BMI above 30 affect fertility?
Women BMI>30 take longer to conceive as they may not ovulate
Men BMI>30 are likely to have reduced fertility
What advice is given to women of BMI<19?
Increasing weight is will increase likelihood of conception
Define infertility
A couple of reproductive age who has not conceived after 1 year of regular unprotected vaginal sexual intercourse
What are the seven WHO reference values for semen analysis?
Semen volume: 1.5ml or more
pH: 7.2 or more
sperm concentration: 15 million per ml or more
total sperm number 39 million or more
total motility: 40% or more motile or 32% or more with progressive motility
Vitality: 58% or more
sperm morphology: 4% or more
When should a repeat semen analysis take place following an abnormal result?
3 months after initial analysis to allow for the cycle of spermatozoa formation
What are the three measures used to predict the ovarian response to gonadotrophin stimulation in IVF?
Total antral follicle count less than 4 indicates low response and higher than 16 indicates a high response
Anti-Mullerian hormone less than 5.4 pmol/l indicates low response and higher than 25 pmol/l indicates high response
FSH greater the 8.9 IU/l indicates low response and less than 4 IU/l indicate high response
How is ovulation confirmed?
A blood test to measure serum progesterone in the mid-luteal phase (21-28 days)