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. 2022 Jan 21;54:46–57. doi: 10.1016/j.ajem.2022.01.028

Table 6.

PRIEST score

Variable Points
Age in years
16–49 0
50–65 2
66–80 3
>80 4
Sex
Female 0
Male 1
Respiratory rate in breaths per minute
≤8 3
9–11 1
12–20 0
21–24 2
≥25 3
Peripheral oxygen saturation
>95% 0
94–95% 1
92–93% 2
<92% 3
Heart rate, beats per minute
≤40 3
41–50 1
51–90 0
91–110 1
111–130 2
≥131 3
Systolic BP, mm Hg
≤90 3
91–100 2
101–110 1
111–130 0
≥130 3
Temperature
≤35.0 °C (95 °F) 3
35.1–36.0 °C (95.1–96.8 °F) 1
36.1–38.0 °C (96.9–100.4 °F) 0
38.1–39.0 °C (100.5–102.2 °F) 1
≥39.1 °C (102.3 °F) 2
Alertness
Alert 0
Confused or not alert 3
Inspired oxygen
Air 0
Supplemental oxygen 2
Performance status
Unrestricted normal activity
Limited strenuous activity, can do light activity
0
1
Limited activity, can self-care 2
Limited self-care 3
Bed/chair bound, no self-care 4