Creatprtmcnc
This test measures the amount of creatinine in the fluid from your abdominal cavity (peritoneal fluid), helping doctors evaluate kidney function in patients on peritoneal dialysis.
{"Creatinine is a waste product that healthy kidneys filter from blood","This test helps check if your peritoneal dialysis treatment is working properly","Abnormally high creatinine in peritoneal fluid may indicate kidney problems","The test involves collecting a sample of fluid from your abdominal cavity","Results help your doctor adjust your dialysis treatment if needed"}
Key facts at a glance
- LOINC
- 12191-3
- Short code
- CREA PF
- Synonyms
- Creat Prt-mCnc
- Category
- kidney
- Sample
- serum
- Container
- Sterile screw-cap container, typically 15 mL polystyrene or polypropylene tube
- Units
- not specified
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 0 years
- Method
- Enzymatic or Jaffe kinetic colorimetric method
- CPT
- 82520
- SNOMED
- 271565004
- Specimen volume
- 1-2 mL peritoneal fluid minimum; 5-10 mL preferred for adequate testing
- Stability
- Room temperature: 24 hours; Refrigerated (2-8°C): 72 hours; Frozen (-20°C): 30 days. Avoid repeated freeze-thaw cycles.
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 1–24 hours
- Order
- routine
What is this test?
The Peritoneal Fluid Creatinine test measures the level of creatinine in the fluid that surrounds your abdominal organs, called peritoneal fluid. This test is particularly important for patients who undergo peritoneal dialysis, a treatment that uses the lining of your abdomen (peritoneum) to filter waste from your blood.
Why is it performed?
This test is primarily performed to: (1) Evaluate the effectiveness of peritoneal dialysis treatment, (2) Monitor kidney function in patients with kidney disease, (3) Detect any complications related to peritoneal dialysis, and (4) Help diagnose conditions affecting the peritoneum.
How is the sample collected?
A small sample of peritoneal fluid is collected during your dialysis exchange or through a procedure called paracentesis. Your healthcare provider will insert a thin needle into your abdominal cavity to withdraw a small amount of fluid for laboratory analysis. The procedure is generally quick and may cause mild discomfort.
Reference range
No established reference range (typically approximates concurrent serum creatinine)not specified
No special preparation or fasting required; specimen obtained by paracentesis
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Do I need to fast before this test?
How long does it take to get results?
Is this test painful?
What do abnormal results mean?
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