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Serum or plasma mass concentration of extracellular matrix protein (e.g., fibronectin)

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

This test measures the amount of proteins found outside your cells, which help maintain tissue structure. These proteins can change in response to injury, inflammation, or certain health conditions.

Quick summary

["Changes in these proteins may signal tissue repair or disease processes."]

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

Key facts at a glance

LOINC
69193-1
Short code
MR Extr
Synonyms
MR Extr
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
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?

Your healthcare provider may order this test to assess how your body is producing or breaking down proteins that support the framework of tissues. It can help evaluate conditions affecting connective tissue, such as wounds healing, fibrosis (scarring), or certain inflammatory or metabolic disorders.

Why Might You Need This Test?

This test might be used if you have symptoms like slow-healing wounds, unexplained swelling, or signs of tissue damage. It can also be part of monitoring for conditions like diabetes, kidney disease, or autoimmune disorders that impact protein production or breakdown.

Sample Collection and Preparation

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate serum (liquid part after clotting) or plasma (liquid part after centrifugation). This sample is sent to a lab for analysis.

What Does the Result Mean?

Results are not typically provided in absolute numbers for this generic analyte, but they are compared to your baseline or clinical context. Elevated levels may suggest increased production or impaired breakdown, while lower levels could indicate reduced synthesis or loss.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Extracellular Matrix Protein Level

Frequently asked questions

Could I get false results if I’m on certain medications?
Some medications or health conditions (like severe dehydration, liver disease, or kidney problems) may affect protein levels. Your provider will consider these factors when interpreting your results.
How soon will I get my results?
Results are usually available within 1–3 business days, depending on lab processing times. Your provider will contact you with the final report.
What if my results are outside the expected range?
If your results differ from expected values, your healthcare provider will discuss them with you during your follow-up visit to explain any potential implications for your health.
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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