Ref: Harrison [ 2426]

Ref: Uptodate [ Pathogenesis, clinical features, and diagnosis of acute cholecystitis] Harrison [ 2427]

Note: pain that lasts >3 to 6 hours

Ref: Epocrates [ https://online.epocrates.com/diseases/7831/Acute-cholecystitis/Diagnostic-Approach]

Ref: Cecil [ 472]

Ref: Cecil [ 472]

Note: more than four to six hours

Ref: Uptodate [ Differential diagnosis of abdominal pain in adults] Cecil [ 472]

Ref: Uptodate [ Differential diagnosis of abdominal pain in adults] Uptodate [ Pathogenesis, clinical features, and diagnosis of acute cholecystitis] Harrison [ 2426] Cecil [ 472] Cecil [ 472] Cecil [ 894]

Note: 10,000–15,000 cells per microliter, >20,000/μL

Ref: Uptodate [ Pathogenesis, clinical features, and diagnosis of acute cholecystitis] Harrison [ 2427] UMLS [ C0149520]

Note: left shift on differential count is found

Ref: Uptodate [ Pathogenesis, clinical features, and diagnosis of acute cholecystitis]

Ref: Epocrates [ https://online.epocrates.com/diseases/7831/Acute-cholecystitis/Diagnostic-Approach]

Ref: Harrison [ 2427] Cecil [ 472]

Ref: Harrison [ 2427] Cecil [ 472]

Ref: Harrison [ 2427] Cecil [ 472]

Ref: Cecil [ 895]

Ref: Cecil [ 895]

Ref: Cecil [ 895]

Ref: Epocrates [ https://online.epocrates.com/diseases/7832/Acute-cholecystitis/Risk-Factors]

Ref: Epocrates [ https://online.epocrates.com/diseases/7832/Acute-cholecystitis/Risk-Factors]

Ref: Unknown [ 0]

Ref: Uptodate [ Pathogenesis, clinical features, and diagnosis of acute cholecystitis] Cecil [ 474] UMLS [ C0149520]