Which diagnostic tests are recommended for confirming Legionnaires' disease in primary care settings?

Diagnostic tests for confirming Legionnaires' disease are not specifically detailed in the provided UK guidelines for primary care settings. However, Legionnaires' disease diagnosis typically involves urinary antigen testing and culture of respiratory secretions, which are standard in hospital or specialist settings rather than primary care. In primary care, clinical suspicion based on symptoms and epidemiological factors usually prompts urgent referral for these tests.

Given the absence of direct guidance in the provided context, it is important to note that primary care clinicians should consider urgent referral for patients with suspected Legionnaires' disease to secondary care where appropriate diagnostic tests such as urinary antigen tests, sputum culture, and PCR can be performed.