OPD means an Out Patient Department of a hospital. It is the section of the hospital where patients are provided medical consultations and other allied services.
It has following parts and services
Consultation chambers where patients are provided medical, surgical or allied(physiotherapy, dietetics) consultation and expert opinion.
Examination rooms where patients can be examined for any disease condition.
Diagnostics which have radiology, pathology,microbiology and other diagnostic services and/or sample collection points
Pharmacy which provides medications to the patients.