The CURB-65 score is based upon five easily measurable factors from which its name is derived (table 3) [16]:

●Confusion (based upon a specific mental test or new disorientation to person, place, or time)

陳先生意識清楚

●Urea (blood urea nitrogen in the United States) >7 mmol/L (20 mg/dL)

Urea 沒有檢驗

●Respiratory rate ≥30 breaths/minute

陳先生呼吸24 bpm

●Blood pressure (BP; systolic <90 mmHg or diastolic ≤60 mmHg)

陳先生血壓96/62 mmHg

●Age ≥65 years

陳先生21歲

Among the 718 patients (mean age 64) in the derivation cohort of CURB-65, 30-day mortality was 0....

The CURB-65 and CRB-65 scores —

The CURB-65 score is based upon five easily measurable factors from which its name is derived (table 3) [16]:

●Confusion (based upon a specific mental test or new disorientation to person, place, or time)

陳先生意識清楚

●Urea (blood urea nitrogen in the United States) >7 mmol/L (20 mg/dL)

Urea 沒有檢驗

●Respiratory rate ≥30 breaths/minute

陳先生呼吸24 bpm

●Blood pressure (BP; systolic <90 mmHg or diastolic ≤60 mmHg)

陳先生血壓96/62 mmHg

●Age ≥65 years

陳先生21歲

Among the 718 patients (mean age 64) in the derivation cohort of CURB-65, 30-day mortality was 0.7, 2.1, 9.2, 14.5, and 40 percent for 0, 1, 2, 3, or 4 factors; only a small number of patients had 5 factors. Similar findings were noted in the separate validation cohort. 

Although based on a relatively small sample size, the authors suggested that patients with a CURB-65 score of 0 to 1 could probably be treated as outpatients, those with a score of 2 should be admitted to the hospital, and those with a score of 3 or more should be assessed for ICU care, particularly if the score was 4 or 5.

陳先生的CURB-65分數是零分，不用太擔心，門診治療即可。

ref:

Yealy, Donald M., Michael J. Fine, and Julio A. Ramirez. "Community-acquired pneumonia in adults: Assessing severity and determining the appropriate site of care." UpToDate. Waltham, MA.: UpToDate (2019).