Understanding what an endocrinologist does begins with understanding what the endocrine system is. The endocrine system is a series of glands that produce and secrete hormones that the body uses for a wide range of functions. These control many different bodily functions, including: 1  Respiration.
Most ovulation tests may be used at any time of the day; some suggest testing first thing in the morning, although this is not required. For greater success, test about the same time each day, and reduce your liquid intake for four hours beforehand.
Research has proven that LH surge is among the best indicators of ovulation, and the kits that Consumer Reports tested are based on LH measurement. Ten of the 11 kits tested worked like home pregnancy tests, using monoclonal antibody sensing technology. The user either urinates on an absorbent wick, dips a test wick into a cup of urine, or places a few drops of urine on a cassette. The result appears as a line in a tiny window.