Bacteriaprtcult
A laboratory test that detects and identifies bacteria in the fluid collected from the abdominal cavity to diagnose infections.
{"This test checks if bacteria are present in the abdominal fluid","It helps diagnose peritonitis (abdominal infection)","Results guide doctors in choosing the right antibiotics","Fluid is collected via a procedure called paracentesis","Results typically take 2-5 days to complete"}
Key facts at a glance
- LOINC
- 619-7
- Short code
- PERIC
- Synonyms
- Bacteria Prt Cult
- Category
- chemistry
- Sample
- serum
- Container
- Sterile, leak-proof, screw-cap container or anaerobic transport vial (for anaerobic culture); blood culture bottles may also be acceptable for peritoneal fluid inoculation at bedside
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 0 years
- Method
- culture
- CPT
- 87070; 87075 (anaerobic); 87205 (gram stain); additional identification codes may apply (87077, 87086, 87106, etc.)
- SNOMED
- 276750007
- Specimen volume
- Minimum 1-10 mL of peritoneal fluid; larger volumes (10-50 mL) preferred to enhance recovery of pathogens, especially mycobacteria and fungi
- Stability
- Room temperature: ≤2 hours for optimal pathogen viability. If delayed processing, refrigerate at 2-8°C for up to 24 hours. Do not freeze. Specimens in anaerobic transport media should be processed within 48 hours.
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 24–168 hours
- Order
- routine
What is this test?
A peritoneal fluid bacterial culture is a laboratory test that analyzes fluid collected from the abdominal cavity (peritoneal space). The test detects whether harmful bacteria are present in the fluid and identifies the specific type of bacteria so doctors can prescribe the most effective treatment.
How is the sample collected?
A healthcare provider collects the peritoneal fluid using a procedure called paracentesis (also known as an abdominal tap). Using a sterile needle and local anesthesia, the doctor inserts a thin needle through the abdominal wall into the peritoneal cavity to withdraw fluid. The sample is then sent to a laboratory for analysis.
Why might I need this test?
Your doctor may order this test if you have symptoms of peritonitis (abdominal infection) such as severe abdominal pain, fever, nausea, or a swollen abdomen. It is commonly performed on patients with ascites (fluid buildup in the abdomen) who develop signs of infection, or after abdominal surgery to check for complications.
What happens during the test?
Before the procedure, you may need to empty your bladder. You will lie on your back. The doctor will clean the abdominal area and apply a local anesthetic to numb the skin. A needle is carefully inserted into the abdomen to withdraw fluid. You may feel some pressure or discomfort. The procedure typically takes 15-30 minutes.
Reference range
No growth of pathogenic bacteria. Normal peritoneal fluid is sterile. Commensal skin flora may be reported if clinically insignificant.N/A
No fasting required. The specimen should be collected prior to initiation of antibiotic therapy whenever possible. Site preparation with appropriate antiseptic (e.g., chlorhexidine or povidone-iodine) is essential to minimize contamination. Peritoneal fluid should be obtained via paracentesis or intra-operative collection under aseptic technique.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings2
Frequently asked questions
How long does it take to get results?
Is the procedure painful?
What are the risks of paracentesis?
Do I need to fast before the test?
What happens if the culture is negative but I still have symptoms?
Sources
- 1
- 2
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy