CURB-65 Score Calculator

Severity assessment for community-acquired pneumonia (CAP).

CURB-65 Criteria

Select all criteria that apply:

C - Confusion (new disorientation)

U - Urea >7 mmol/L (BUN >19 mg/dL)

R - Respiratory rate ≥30/min

B - Blood pressure (SBP <90 or DBP ≤60 mmHg)

65 - Age ≥65 years

CRB-65 (Pre-Hospital)

CRB-65 excludes urea (U) for community settings where lab tests are not available. CRB-65 Score: 0/4

CURB-65 Score

0/5

30-Day Mortality: 0.6%

Risk Level

Low

Treatment Site

Outpatient

Management Recommendation

Low mortality risk. Consider home treatment with oral antibiotics. Outpatient management appropriate for most patients.

Mortality Risk by Score

Score 0: 0.6% - Outpatient
Score 1: 2.7% - Outpatient
Score 2: 6.8% - Inpatient or close outpatient
Score 3: 14.0% - Inpatient (consider ICU)
Score 4: 27.8% - ICU
Score 5: 57.0% - ICU

CURB-65 Mnemonic

Confusion (new)
Urea >7 mmol/L
Respiratory rate ≥30
Blood pressure low
65 years or older

Clinical Notes

Consider social factors, ability to take oral medications, oxygen requirements, and patient preference alongside CURB-65 score when making disposition decisions.