Guided drainage fluid protein concentration (qualitative)
This test evaluates the protein content in fluid collected from a guided drainage procedure, such as a chest tube or other drainage catheter. It helps assess conditions like fluid accumulation, infection, or inflammation.
["This test helps doctors understand whether fluid drainage is effective and if there are signs of infection or other issues."]
Key facts at a glance
- LOINC
- 43537-0
- Short code
- RF Guided Drain+cath place
- Synonyms
- RF Guided Drain+cath place
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- rf
- CPT
- 86430
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What Is This Test Measuring?
The test measures the **protein concentration** in the fluid removed from your body through a guided drainage procedure. Proteins are important molecules that help with healing, immune response, and maintaining fluid balance. High or low protein levels can indicate different health concerns.
Why Might You Need This Test?
Your doctor may order this test if you have a drainage tube (like a chest tube) in place to remove fluid from a cavity, such as the chest, abdomen, or other body areas. It helps determine if the fluid is clear of infection, if it’s the right type of fluid (like pus or blood), or if additional treatment is needed.
How Is the Sample Collected?
The fluid is collected directly from the drainage tube during a procedure. No additional blood draw or special preparation is needed beyond what’s required for the drainage itself. The sample is sent to a lab for analysis.
What Does the Result Mean?
The result is reported as a **qualitative** (yes/no or descriptive) assessment of protein presence. High protein levels might suggest infection, inflammation, or abnormal fluid composition, while low levels could indicate normal drainage or other underlying issues. Your doctor will interpret the result in the context of your symptoms and medical history.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long will it take to get results?
What are common reasons for abnormal results?
Do I need to prepare for this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 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