Glossary Terms

Thyroid Gland: an endocrine gland consisting of two lobes, one on each side of the trachea, joined by a narrow isthmus, producing hormones (thyroxine and triiodothyronine), which require iodine for their elaboration and which are concerned in regulating metabolic rate; it also secretes calcitonin.

Toxemia: A condition in which the blood contains bacterial toxins disseminated from a local source of infection or metabolic toxins resulting from organ failure or other disease. Also called blood poisoning.

Transvaginal Sonohysterography (TSH):, also called hysterosonography is a noninvasive procedure involving the slow infusion of sterile saline solution into the uterus during ultrasound imaging. This is a procedure which evaluates abnormal growths inside the uterus and abnormalities of the tissue lining the uterus (endometrium). TSH does not require either radiation or contrast media or invasive

Trimester: one of the three periods of approximately 3 months into which pregnancy is divided. The first trimester includes the time from the first day of the last menstrual period to the end of 12 weeks. The second trimester, closer to 4 months in length than 3, extends from the twelfth to the twenty-eighth week

Triple screen: Triple screen is a blood test offered to pregnant women during the 16th-18th week of pregnancy to help identify if the unborn baby is at risk for birth defects.

Thyroid-Stimulating Hormone (TSH): a hormone that stimulates the thyroid gland to produce , and then which stimulates the metabolism of almost every tissue in the body.