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Methods: included. Data collected were demographics, procalcitonin level, CURB-65 score, PaO2, PaCO2, lactic acid and serum creatinine levels. Data was analysed with SPSS (v22). Spearmen’s and Pearson’s correlations analysis were used where appropriate. Number of patients 113, 15 excluded as tested positive viral pathogens. Mean age was 45, Male Vs Female 78 Vs 21. Procalcitonin

Results: vs Curb-65-= 0.386, n= 98, procalcitonin vs PaO2-= 0.179, n= 48 procalcitonin vs PaCO2-=-0.124, n= 48 rs p= 0.0001, r p= 0.224 n= 48, r procalcitonin vs lactic acid-= 0.594, n= 60 procalcitonin vs creatinine= 0.215, n= 99 p= 0.403, r p= 0.0001,-r p= 0.033. There was no statistically significant co-relation with procalcitonin and CURB-65. The only moderate correlation was with

Conclusion: lactic acid levels. Our data suggest that whilst procalcitonin may be useful for diagnosing bacterial infection, level of procalcitonin …