Abstract
Background: Acute abdominal pain is a common complaint among emergency department patients. Diagnostics of one of the most common pathologies behind acute abdominal pain, acute appendicitis, has radically changed over the last decades.
 Methods: The source of data was from pretested proforma which takes into account clinical history, general physical examination, relevant investigations, imaging modalities.
 Results: In our study appendix diameter test sensitivity was 95.02%, specificity was 86.24 %, positive predictive value was 97.24%, negative predictive value was 64.66% and diagnostic accuracy was 94.00%. 
 Conclusion: Measuring appendix diameter by USG pre-operatively reducing the rate of negative explorations
 Keywords: Appendix diameter, Appendectomy, negative explorations
Highlights
Acute abdominal pain is a common complaint among emergency department patients
The source of data was from pretested proforma which takes into account clinical history, general physical examination, relevant investigations, imaging modalities
In our study appendix diameter test sensitivity was 95.02%, specificity was 86.24 %, positive predictive value was 97.24%, negative predictive value was 64.66% and diagnostic accuracy was 94.00%
Summary
Abstract Background: Acute abdominal pain is a common complaint among emergency department patients. Methods: The source of data was from pretested proforma which takes into account clinical history, general physical examination, relevant investigations, imaging modalities. Results: In our study appendix diameter test sensitivity was 95.02%, specificity was 86.24 %, positive predictive value was 97.24%, negative predictive value was 64.66% and diagnostic accuracy was 94.00%.
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