Table 2–1. Empiric treatments or tests for persistent cough.
Suspected Step 1 Step 2
Condition (Empiric Therapy) Diagnostic Testing
Postnasal Therapy for allergy or ENT referral; sinus CT scan
drip chronic sinusitis
Asthma β2-Agonist Spirometry; consider
methacholine challenge if normal
GERD Proton pump inhibitors Esophageal pH monitoring
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