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What is AMH ?
AMH stands for Anti-Mullerian
Hormone. Since AMH is produced directly by the ovarian
follicles, AMH levels correlate with the number of
antral follicles in the ovaries . It has been documented
that women with lower AMH have lower antral follicular
counts and produce a lower number of oocytes compared
with women with higher levels.
AMH Reference ranges
Ovarian Fertility
Potential pmol/L
Optimal Fertility
28.6 pmol/L - 48.5 pmol/L
Satisfactory
Fertility 15.7 pmol/L - 28.6 pmol/L
Low
Fertility 2.2 pmol/L -
15.7 pmol/L
AMH levels do not vary with the
menstrual cycle and can be measured independently of
the day of the menstrual cycle.
AMH can be used for
1.
Evaluating Fertility Potential and ovarian
response in IVF – Serum AMH levels correlate with the
number of early antral follicles. This makes is useful
for prediciting your ovarian response in an IVF cycle.
Women with low AMH levels are more likely to be poor
ovarian responders.
2.
Measuring Ovarian Aging – Diminished ovarian
reserve, is signaled by reduced baseline serum AMH
concentrations. Women with poor ovarian reserve who have
entered the oopause have low
levels of AMH.
The other tests to check ovarian
reserve include checking your
inhibin
levels.
However, these are new and
expensive tests, and is still not easily available. This
is why the gold standard for ovarian reserve testing is
still the Day
3 FSH level.
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