A joint federal and state programme that helps with medical costs for some people with low incomes and limited resources. Medicaid serves the poor, blind, aged, disabled or members of families with dependent children (AFDC). Each state has its own standards for qualification. A Federally aided, state-operated and administered programme that provides medical benefits for certain indigent or low-income persons in need of health and medical care. The program, authorised by Title XIX of the Social Security Act, is basically for the poor. It does not cover all of the poor, however, but only persons who meet specified eligibility criteria. Subject to broad Federal guidelines, states determine the benefits covered, programme eligibility, rates of payment for providers, and methods of administering the program. Medicaid programmes vary from state to state, but most health care costs are covered for citizens who qualify for both Medicare and Medicaid. All states but Arizona have Medicaid programs.