INTRO    EQUATIONS    CRITERIA    DECISION    CONVERT    SPECIALTIES    REFS    SEARCH    NEW    FHIR APP    POLICIES    CONTACT

 

CURB Pneumonia Severity Score

 

Input
 

Confusion	No (0)
	Yes (1)
BUN		mg/dL mmol/L
Respiratory Rate		/min br/min breaths/min
Systolic Blood Pressure		Pascal cmH2O mmHg mm[Hg] torr
Diastolic Blood Pressure		Pascal cmH2O mmHg mm[Hg] torr

 
Results
 
Important: Inputs must be complete to perform calculation.

 

CURB Score		# count index logit none number points score

 

CURB Score

 

0 Points:	Low risk
1 to 4 Points:	Higher risk

 

 

Data action

 
     
 
Include literature references: Yes   No

 

 

Notes

• Confusion is defined by an abbreviated Mental Test Score ≤8.

 
Equations used
 

CURBScore = Confusion + BUNFactor + RespiratoryRateFactor + BloodPressureFactor

 

 

Calculation Details and Variables

• Equation parameters such as Confusion, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0), represent the values that will be used.
• BUNFactor is assigned values by this ordered logic:
  • If BUN >19 mg/dL, BUNFactor = 1
  • Else BUNFactor = 0.
• RespiratoryRateFactor is assigned values by this ordered logic:
  • If Respiratory Rate ≥30 breaths/min, RespiratoryRateFactor = 1
  • Else RespiratoryRateFactor = 0.
• If SystolicBloodPressure <90 mmHg or DiastolicBloodPressure ≤60 mmHg, BloodPressureFactor is set to 1. Otherwise BloodPressureFactor is set to 0.

 

References

1. Steinberg DI. ACP Journal Club. Review: Risk prediction scales have different strengths and weaknesses for predicting mortality in community-acquired pneumonia. Ann Intern Med. 2011 Apr 19;154(8):JC4-12. doi: 10.1059/0003-4819-154-8-201104190-02012. PubMed ID: 21502638
2. Loke YK, Kwok CS, Niruban A, Myint PK. Value of severity scales in predicting mortality from community-acquired pneumonia: systematic review and meta-analysis. Thorax. 2010 Oct;65(10):884-90. doi: 10.1136/thx.2009.134072. Epub 2010 Aug 20. Review. PubMed ID: 20729235
3. Morris A. ACP Journal Club. Review: CURB65, CRB65, and Pneumonia Severity Index similarly predict mortality in community-acquired pneumonia. Ann Intern Med. 2011 Apr 19;154(8):JC4-13. doi: 10.1059/0003-4819-154-8-201104190-02013. PubMed ID: 21502639
4. Chalmers JD, Singanayagam A, Akram AR, et al. Severity assessment tools for predicting mortality in hospitalised patients with community-acquired pneumonia. Systematic review and meta-analysis. Thorax. 2010 Oct;65(10):878-83. doi: 10.1136/thx.2009.133280. Epub 2010 Aug 20. Review. PubMed ID: 20729231
5. Lim WS, Macfarlane JT, Boswell TC, et al. Study of community acquired pneumonia aetiology (SCAPA) in adults admitted to hospital: implications for management guidelines. Thorax. 2001 Apr;56(4):296-301. PubMed ID: 11254821
6. Lim WS, van der Eerden MM, Laing R, et al. Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study. Thorax. 2003 May;58(5):377-82. PubMed ID: 12728155

 

Associated Medical Subject Headings [MeSH]
 

80 and over,   Adolescent,   Adult,   Aged,   Anti-Bacterial Agents,   Bacterial,   Cohort Studies,   Community-Acquired Infections,   Female,   Home Care Services,   Hospitalization,   Humans,   Male,   Middle Aged,   Multivariate Analysis,   Patient Selection,   Pneumonia,   Predictive Value of Tests,   Prognosis,   Prospective Studies,   Regression Analysis,   Severity of Illness Index,   Viral

 

Associated Logical Observation Identifiers Names and Codes [LOINC]
 

Parameter	LOINC's and Suggested Units
BUN	3094-0 : mg/dL      6299-2 : mg/dL      14937-7 : mmol/L      59570-2 : mmol/L
Respiratory Rate	9303-9 : breaths/min      9279-1 : breaths/min      76170-0 : breaths/min      19840-8 : breaths/min
Systolic Blood Pressure	8480-6 : mmHg
Diastolic Blood Pressure	8462-4 : mmHg

 
This material contains content from LOINC (http://loinc.org). LOINC is copyright © 1995-2023, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC® is a registered United States trademark of Regenstrief Institute, Inc.