Curb-65 Calculator

Curb 65 Score x
Mortality Rate x


Respiratory Rate:

Blood Urea Nitrogen:

Systolic Blood Pressure:

Diastolic Blood Pressure:


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Curb-65 Calculator

Curb-65 is a score that gives the severity and mortality of community-acquired pneumonia. It helps determine the way the treatment to be offered to the patient – inpatient or outpatient mode.

The acronym CURB-65 stands for:

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

Source: Wikipedia

What do various values of CURB-65 indicate?

Various ranges of CURB-65 indicate the mortality rate. The higher the CURB score the greater the risk of death.

  • Patients with a CURB-65 score of 0 to 1 has less than 5% mortality
  • Patients with a CURB-65 score of 2 to 3 has less than 10% mortality
  • Patients with a CURB-65 score of 4 to 5 has 15-30% mortality

Besides, the CURB-65 score helps in determining the mode of treatment to the patient as shown below:

  • A score of 0-1 indicates that the patient can be treated as an outpatient.
  • A score of 2 indicates that a temporary stay may be needed or a close observation will also suffice as an outpatient
  • A score 3-5 indicates hospitalization and intensive care.

How does CalculatorHut’s CURB-65 calculator help you?

You can calculate the value of the CURB-65 score using our calculator. Enter all the values as indicated and click Calculate. This would give you the score as per the parameters.

We also have a wide range of Health Calculators that help you determine various parameters such as Height and Weight, BMI & PI Calculator, Calories Calculator, and others. You will find them useful. Do check them out.

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