Semen Evaluation. Stallion AI Services performs tests on all semen collected at the centre to make sure only the best quality semen is used for AI. More indepth evaluations are also carried out on frozen semen and this service is also available for stallion owners wishing to know the quality of their stallionsâ semen.
Ultrasound is one of the screening tests that may be done in the first trimester to look for birth defects, such as Down syndrome. The first-trimester screening test uses ultrasound to measure the thickness of the skin at the back of the baby's neck.
During early pregnancy, however, the uterus and fallopian tubes are closer to the vagina than to the abdominal surface. The ultrasound will likely be done using a wandlike device placed in your vagina (transvaginal ultrasound). Sometimes it's too soon to detect a pregnancy through ultrasound. If the diagnosis is in question, your doctor might monitor your condition with blood tests until the ectopic pregnancy can be confirmed or ruled out through ultrasound â usually by four to five weeks after conception.