CURB-65 score for assessment of severity of pneumonia.

The score is an acronym for each of the risk factors measured. Each risk factor scores one point, for a maximum score of 5:

• Confusion of new onset (defined as an AMTS of 8 or less)
• Blood Urea nitrogen greater than 7 mmol/l (19 mg/dL)
• Respiratory rate of 30 breaths per minute or greater
• Blood pressure less than 90 mmHg systolic or diastolic blood pressure 60 mmHg or less
• Age 65 or older

The risk of death at 30 days increases as the score increases:

• 0—0.6%
• 1—2.7%
• 2—6.8%
• 3—14.0%
• 4—27.8%
• 5—27.8%

See also:

Recommendations for treatment of pneumonia

 

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