Diagnosis of swine flu is usually made through a combination of medical history, physical examination, and laboratory tests.
The medical history includes detailed information regarding the patient's symptoms, recent travel, and contact with any other person that may have been infected. During the physical examination, the doctor will look for signs of fever, sore throat, coughing, and shortness of breath.
Laboratory tests, such as a rapid influenza diagnostic test (RIDT) or polymerase chain reaction (PCR) test, are used to diagnose swine flu. RIDT tests involve the collection of a nasal swab and analysis of the swab sample for the presence of the influenza virus. PCR tests involve the collection of a nasal swab, which is then sent to a laboratory for further testing. The PCR test can identify specific types of influenza viruses, including swine flu.
In some cases, a chest X-ray may be ordered to confirm the diagnosis and to rule out other conditions. Additionally, a blood test may be ordered to assess the patient’s overall health status.
Early diagnosis of swine flu is important for successful treatment. If a person is suspected to have swine flu, treatment should begin immediately. Treatment includes antiviral medications, such as oseltamivir or zanamivir, and supportive care. Antiviral medications can help reduce symptoms and shorten the duration of illness.