Schedule of Prenatal Care. Specific schedules of prenatal care vary from provider to provider, but a general schedule follows below, as well as some of the screening tests or activities you might expect at various visits.
radioisotope. a radioactive form of an element, consisting of atoms with unstable nuclei, which undergo radioactive decay to stable forms, emitting characteristic alpha, beta, or gamma radiation. These may occur naturally, as in the cases of radium and uranium, or may be created artificially.
Tritium (hydrogen-3 or 3H) is a weakly radioactive isotope of the element hydrogen, which occurs both naturally and during the operation of nuclear power plants. Tritium is one of the least dangerous radioisotopes because it emits very weak radiation and leaves the body relatively quickly.