The reference range below is the yardstick for “normal/at-baseline.” Normal findings are documented in Mode A with the skilled rationale that follows in Section 6 — never as “WNL” alone.
Respiratory rate 12–20 and unlabored, with a regular pattern.
Lung fields clear to auscultation in all anterior, lateral, and posterior fields bilaterally.
SpO2 at or above 95% on room air, or at the patient's ordered oxygen target.
No accessory-muscle use, retractions, nasal flaring, or pursed-lip breathing.
Speaks in full sentences without dyspnea.
Denies cough, sputum production, hemoptysis, or pleuritic chest pain.
Chest expansion symmetric; no cyanosis or digital clubbing.
