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Table 1 Vital signs categories according to Rapid Emergency Treatment and Triage System Adult (RETTS-A) (5). Each vital sign value corresponds to a triage priority in RETTS-A (green, yellow, orange, and red). The table presents the cut-off values for each vital sign according to RETTS-A and in parentheses are the number of patients in the study population with that corresponding vital sign value in that corresponding interval

From: The association between vital signs and mortality in a retrospective cohort study of an unselected emergency department population

  Green Yellow Orange Red
Airway Open (n = 96486)    Threatened (n = 26)
SpO2 (%) >95 (n = 79317) 90–95 (n = 10912) <90 (n = 1848) <90 with O2 (n = 397)
RR (min−1) 8–25 (86458)   26–30 (3401) <8 (n = 32) or >30 (n = 2089)
PR (min−1) 50–110 (n = 84140) 40–49 (n = 601) or 111–120 (n = 4061) <40 (n = 126) or R 121–130/IR 121–150 (n = 2440) R >130 or IR > 150 (n = 1122)
SBP (mmHg) ≥90 (n = 91670)    <90 (n = 590)
AVPU A (n = 89798) V (n = 2063) P (n = 478) U (n = 205)
Temp (°C) 35–38.5 (n = 89077) 38.6–41 (n = 2180) <35 (n = 391) or >41 (n = 4)  
  1. Abbreviations: SpO2 Oxygen saturation, O 2 Oxygen, RR Respiratory rate, min minute, PR pulse rate, SBP systolic blood pressure, AVPU Alert, Verbal, responsive to pain, unresponsive to pain-level of consciousness scale, Temp temperature, n number