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N-Pass Handbook

Bilateral Endoscopic Nasal Polyp Score (NPS)1,3

Polyp size is assessed endoscopically to determine the nasal polyp score (NPS).

The NPS scale ranges from 0 (no polyp) to 4 (large polyps) for each nostril. These scores are tallied from each nostril for a total score ranging from 0 to 8.