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Transcervical fluid (endometrial aspirate) protein concentration (mass concentration)

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

This test measures the protein levels in fluid collected from the uterus through a small tube inserted through the cervix. It may be used to assess uterine health or diagnose conditions like endometrial cancer.

Quick summary

["Protein levels in uterine fluid can help identify potential health concerns during evaluation procedures."]

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

Key facts at a glance

LOINC
64998-8
Short code
RF Guided FT-L Cath place--transcervical
Synonyms
RF Guided FT-L Cath place--transcervical
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

Why This Test Is Done

Your healthcare provider may order this test if you’re undergoing a procedure like a dilation and curettage (D&C) to check for abnormal uterine bleeding, evaluate uterine health, or investigate symptoms such as pelvic pain or irregularities found on imaging studies. The fluid collected during the procedure is analyzed for protein content as part of a broader diagnostic assessment.

What to Expect Before the Test

No specific preparation is typically required beyond standard pre-procedure instructions (e.g., avoiding certain medications or fasting). You may be asked to empty your bladder before the procedure. Your provider will explain the process and any precautions to take, such as avoiding sexual activity or certain medications.

What Happens During the Test

The test involves inserting a thin tube (cannula) through your cervix into the uterus to collect fluid. This is usually done under local anesthesia to minimize discomfort. The fluid is then sent to a lab for protein analysis. The procedure itself is brief but may cause mild cramping or discomfort.

What the Results Mean

Protein levels in uterine fluid can vary based on the cause of the fluid collection (e.g., diagnostic vs. therapeutic). Elevated or abnormal protein concentrations may signal inflammation, infection, or malignancy, prompting further evaluation. Your provider will discuss results 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

What are the normal protein levels in this fluid?
Protein levels in uterine fluid are not standardized across labs, as they depend on the clinical context (e.g., whether the fluid is collected for diagnostic or therapeutic reasons). Your results will be interpreted by your healthcare provider based on your specific situation, symptoms, and medical history.
Could abnormal protein levels indicate a serious condition?
Yes, elevated or unusual protein levels may raise concerns for conditions like endometrial cancer, infection, or uterine inflammation. However, results alone are not diagnostic; they are part of a comprehensive evaluation that includes clinical findings and possibly additional tests.
How soon will I receive my results?
Results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will contact you directly to discuss findings and next steps.
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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