Clinical presentation and diagnostic workup for community-acquired pneumonia: the Gulf Corporation Council CAP Working Group consensus statement.

Community-acquired pneumonia (CAP) is diagnosed on the basis of a suggestive history and compatible physical findings and new infiltrates on a chest radiograph. No criteria or combination of criteria based on history and physical examination have been found to be gold standard. With the rise in elderly Gulf Cooperation Council (GCC) residents, CAP is likely to present with non-classical manifestations such as somnolence, new anorexia, and confusion and carries a worse outcome than CAP in their younger counterparts. Tuberculosis should be considered in the differential diagnosis of unresolving CAP in the GCC region. Diagnostic work up depends on severity of CAP, clinical course and underlying risk factors.