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Guided drainage fluid protein concentration (qualitative)

Published: August 9, 2026Updated: August 16, 2026

This test measures the protein content in fluid collected from a guided drainage procedure, often used to assess drainage sites like abscesses or cysts.

Quick summary

["This test helps evaluate the presence and nature of fluid accumulation in your body."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
35885-3
Short code
RF Guided Absc drain+cath place
Synonyms
RF Guided Absc 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 For?

Guided drainage procedures, such as those performed for abscesses or fluid collections, may require analyzing the fluid removed. This test checks whether the fluid contains proteins, which can indicate inflammation, infection, or other underlying conditions. Protein presence in unexpected sites may signal abnormal fluid buildup or infection.

How Is the Sample Collected?

A healthcare provider will collect the fluid using a guided drainage procedure, such as a needle or catheter. The fluid is then sent to the lab for analysis. You may feel some discomfort during the procedure, but it is typically brief and managed with local anesthesia if needed.

What Does the Result Mean?

The result is qualitative, meaning it indicates whether protein is present (positive) or not (negative) rather than providing a specific quantity. High protein levels in the fluid may suggest conditions like infection, inflammation, or malignancy. Low or absent protein could indicate normal drainage or other specific clinical scenarios.

Common Conditions Monitored

This test is often used to monitor drainage from abscesses, cysts, or other fluid collections. It helps doctors determine if the fluid needs further treatment, if infection is present, or if the drainage site is healing properly.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why would I need this test?
You may need this test if you have a guided drainage procedure, such as for an abscess, cyst, or other fluid collection in your body. Your doctor may order it to check if the fluid contains proteins that could indicate infection, inflammation, or other issues.
How long will it take to get my results?
Results from this qualitative test are typically available within a few hours to a couple of days, depending on lab processing times. Your healthcare provider will discuss the results with you during your follow-up visit.
Can I eat or drink before this test?
No special preparation is needed for this test since the fluid is collected during the drainage procedure. However, follow your doctor’s instructions if you have any specific dietary restrictions related to your condition.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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