Testing for pharyngitis usually is not recommended for children or adults with acute pharyngitis with clinical and epidemiological features that strongly suggest a viral etiology (eg, cough, rhinorrhea, hoarseness, and oral ulcers). Diagnostic studies for GAS are not indicated for children < 3 years old because acute rheumatic fever is rare in these and the incidence of streptococcal pharyngitis and the classic presentation of streptococcal pharyngitis are uncommon in this age group. Selected children < 3 years old who have other risk factors, such as an older sibling with GAS infection, may be considered for testing.
Pharyngitis laboratory findings
Rhinosinusitis laboratory findings
Adenoiditis laboratory findings
Tonsillitis laboratory findings
Acute viral nasopharyngitis laboratory findings
Rhinitis laboratory findings
Esophagitis laboratory findings
Tuberculosis laboratory findings