title: Adenosine Deaminase (ADA) Level in Tubercular Pleural Effusion.
abstract: OBJECTIVE
  To study the value of adenosine deaminase level in tuber-cular pleural effusion.
  
  
  METHODS
  A hospital based observational study.
  
  
  METHODS
  Out and In patients service of department of Tuberculosis & Chest Diseases, MLN Medical College Allahabad.
  
  
  METHODS
  50 consecutive patients of pleural effusion, who were above the age of 12 years, were studied.
  
  
  RESULTS
  Pleural fluid adenosine deaminase was more than 36 IU/L (36 to 229.7 IU/L) in tubercular pleural effusion (34 patients). In case of malignancy no. of patients was 08 and pleural fluid adenosine deaminase was more than 18.5 IU/L (18.5 to 87.6 IU/L). While in one case of hypoprotenemiea pleural fluid adenosine deaminase was 8.21 IU/L. If 36 IU/L is taken as cut of limit the sensitiv-ity and specificity of ADA for tuberculosis is 100 % and 77.7 %. More than 100 IU/L was exclusively seen in tubercular pleural effusion.
  
  
  CONCLUSIONS
  ADA > 100IU/L was observed in TB only.
authors.affiliation: Department of TB & Chest Diseases, CSM Medical University, Lucknow, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Verma
authors.forename: A L
authors.initials: AL
authors.lastname: Dubey
authors.forename: P A
authors.initials: PA
authors.lastname: Singh
authors.forename: S L
authors.initials: SL
authors.lastname: Tewerson
authors.forename: Davashish
authors.initials: D
authors.lastname: Sharma