eclampsia /iklamp″sē·ə/ [Gk, ek, out, lampein, to flash] , a potentially life-threatening disorder characterized by hypertension, generalized edema, and proteinuria with seizures. It is the gravest form of pregnancy-induced hypertension. Bed rest in a quiet, dimly lighted room, the administration of magnesium sulfate, and antihypertensive medications are prescribed. Vigilant monitoring of the condition, including deep tendon reflexes, is warranted as the danger is grave. The cause is unknown.