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Table 3 ABRS Diagnosis Requires the Presence of at Least 2 Major Symptoms*

From: Canadian clinical practice guidelines for acute and chronic rhinosinusitis

  Major Symptom
P Facial P ain/pressure/fullness
O Nasal O bstruction
D Nasal purulence/discolored postnasal D ischarge
S Hyposmia/anosmia (S mell)
  1. *At least 1 symptom must be nasal obstruction or nasal purulence/discolored postnasal discharge. Thus, a diagnosis requires at least 2 PODS, one of which must be O or D.
  2. Consider ABRS when viral URTI persists beyond 10 days or worsens after 5 to 7 days with similar symptoms [22]. Bacterial etiology should be suspected if sinus symptoms persist for more than 7 days without improvement [20].