["It sure ain't easy!": an ethnographic study of primary health care for patients with hypertension and/or diabetes in Manaus, Amazonas State, Brazil].

This paper analyzes the results of an evaluative study in the city of Manaus, Amazonas State, Brazil, on primary health care for patients with hypertension and/or diabetes. The ethnographic approach used access to services and comprehensiveness of health care as core analytical categories, comparing the health practices developed by Family Health Program (FHP) units with traditional non-FHP primary care units. Access to family health care units in low-income communities is limited by the precarious surrounding urban infrastructure. The main barrier to access to primary care units is distance. The lack of a referral system between the various levels of complexity jeopardizes patients' access to tests and specialists. The care supplied by the two units is limited to patient conditions that can be treated pharmacologically, thus compromising the comprehensiveness of care. The health professionals display a limited capacity to hear problems outside the immediate focus of the program activity. The paper highlights the potential for using ethnography in evaluative research on health systems and services.