This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory, Subject name: Medicine
CURB - 65 score is used in pneumonia to assess 
Select and explain. 
A. Severity, B. Complication, C. Cause, D. Effect of treatment
A: Severity
Answer: A: Severity 
Explanation: Ans. A. Severity'CURB - 65' score: To asses severity of pneumonia, CURB-65 score is useda. Confusion:b. Urea >7mmol/L(7x2.8=19.6mg%)c. Respiratory rate >30/mind. BP <90 systolic and/or <60mmHg diastolic).e. Age >65.Score:0-1 = home treatment possible0-2 = Hospital Therapy0-3 = Indicates severe pneumonia.