Browse Glossary: "o"
a doctor who treats pregnant women and delivers babies.
a medical doctor who diagnoses and treats all eye diseases and eye disorders. Opthalmologists can also prescribe glasses and contact lenses.
a health care professional who dispenses glasses and lenses. An optician also makes and fits contact lenses.
a primary eye care provider who prescribes glasses and contact lenses. Optometrists can diagnose and treat certain eye conditions and diseases.
oral glucose tolerance test
a test to diagnose pre-diabetes and diabetes. The oral glucose tolerance test is given by a health care professional after an overnight fast. A blood sample is taken, then the patient drinks a high-glucose beverage. Blood samples are taken at intervals for 2 to 3 hours. Test results are compared with a standard and show how the body uses glucose over time.
oral hypoglycemic agents
medicines taken by mouth by people with type 2 diabetes to keep blood glucose levels as close to normal as possible. Classes of oral hypoglycemic agents are alpha-glucosidase inhibitors , biguanides , D-phenylalanine derivatives , meglitinides , sulfonylureas , and thiazolidinediones.
an above-normal body weight; having a body mass index of 25 to 29.9.