Dating of pregnancy by trimesters a review and reappraisal

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The objective of this chapter is to provide clinicians with an overview of the practical applications of ultrasonography in the evaluation and management of women who are trying to conceive or who simply want to know if conception is possible.

The diagnosis of infertility Conception typically occurs at a rate of 20–22% per cycle in women who are less than 35 years of age.

Couples need to understand the rationale for, and be involved in, decision-making at each stage of investigation and therapy so that they have realistic expectations.

In most centers, fertility care is now provided by multidisciplinary teams where each team member has a role to play in the assessment, ongoing counseling, and therapies.

ART have come to rely upon the use of ultrasonography to perform the available fertility therapies.

Occasionally, individuals request an assessment of their fertility status before they attempt to conceive or when planning conception.Women who have menstrual abnormalities, a history of pelvic surgery, infection, or advanced reproductive age may be evaluated sooner.The Canadian Fertility and Andrology Society of Canada and the American Society for Reproductive Medicine have outlined best-practice guidelines for the optimal sequence of diagnostic investigations and therapeutic interventions for couples who present with infertility.Fertility potential is taken for granted by most men and women.For women and their partners who experience difficulties conceiving, efficient, effective methods to evaluate fertility status are required.Conversely, discovery of polycystic ovaries can stimulate investigations to diagnose polycystic ovary syndrome and prompt counseling about lifestyle modifications and risks of ovarian hyperstimulation and multiple ovulation following ovulation therapy.

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