Ascites Specimen Labeling and Handling Guidelines

Essential Labeling Requirements

The American Association for the Study of Liver Diseases recommends that every specimen bottle must include patient name, medical record number, date of birth, and date/time of collection to ensure proper identification and prevent specimen mix-ups 1
The European Association for the Study of the Liver suggests that the specimen source should be clearly labeled as "ascitic fluid" or "peritoneal fluid" to distinguish it from other body fluids, particularly urine, which can appear similar 3

The American College of Gastroenterology recommends labeling the specimen as "diagnostic paracentesis" or "therapeutic paracentesis" to provide clinical context 4, 1
The World Gastroenterology Organisation suggests including the anatomic site of collection if ultrasound-guided paracentesis was performed 4

The Infectious Diseases Society of America recommends that ascitic fluid for bacterial culture must be inoculated into blood culture bottles at the bedside immediately after collection to maximize yield, as this technique significantly improves detection of spontaneous bacterial peritonitis 1, 2
The American Society for Clinical Pathology suggests labeling both aerobic and anaerobic bottles with "ascitic fluid culture" and patient identifiers 1
The European Society of Clinical Microbiology and Infectious Diseases recommends that this is mandatory for hospitalized cirrhotic patients with signs of infection, gastrointestinal bleeding, encephalopathy, worsening renal/liver function, or hypotension 2

The American Clinical Laboratory Association recommends that all specimens should be transported to the laboratory immediately after collection, as delays can affect cell counts and culture results 1
The College of American Pathologists suggests that blood culture bottles should be kept at room temperature and sent to microbiology stat 1

The American Medical Association recommends that the requisition form should include clinical indication (new-onset ascites, suspected infection, malignancy evaluation, etc.) to guide appropriate testing 1, 2
The American Gastroenterological Association suggests documenting if patient has known cirrhosis, as this affects interpretation of results and testing priorities 4, 2
The Infectious Diseases Society of America recommends noting any antibiotic administration prior to paracentesis, as this may affect culture results 1