Which statement is true regarding Red Mental Status & Vital Signs for all patients?

• A. Unable to follow commands
• B. RR <10 or >29
• C. Room air pulse oximetry <90%
• D. The red criteria only apply to pediatric patients

Answer: (C)

Red criteria focus on signs that require immediate action. A room air pulse oximetry reading below 90% is the universal red flag because it directly signals inadequate oxygen delivery to tissues. Regardless of age or mental status, a SpO2 under 90% means the patient needs supplemental oxygen and rapid assessment to prevent deterioration. The other statements aren’t universally true for every patient: being unable to follow commands can occur for many reasons beyond oxygenation, and using fixed respiratory-rate cutoffs can vary with age and chronic conditions. Red criteria apply to all patients, not just pediatric ones.