CURB65

CURB65 is a clinical prediction rule used to assess the severity of community-acquired pneumonia (CAP) and to guide treatment decisions. It is a simple scoring system that assigns points based on five clinical factors. Each factor present contributes one point to the total score. The five factors are: C - Confusion of new onset, U - Urea (blood urea nitrogen > 7 mmol/L or BUN > 19 mg/dL), R - Respiratory rate (30 breaths per minute or greater), B - Blood pressure (systolic < 90 mmHg or diastolic < 60 mmHg), and 65 - Age (65 years or older).

A CURB65 score of 0 or 1 generally suggests that outpatient treatment is appropriate. Scores of 2 may warrant hospitalization for close monitoring and possibly inpatient treatment. A CURB65 score of 3 or higher typically indicates severe pneumonia and necessitates hospitalization, often in an intensive care unit, with aggressive management.

The CURB65 score is valued for its simplicity and ease of use at the point of care, making it a practical tool for clinicians. It helps stratify patients with CAP into different risk categories, aiding in decisions about hospitalization, the need for intensive care, and the urgency of treatment. While it is a useful tool, it should be used in conjunction with clinical judgment and other diagnostic information. Other severity assessment tools for CAP also exist, such as the pneumonia severity index (PSI).