Skip to content

Escherichia coli Adherence Pattern by Immunofluorescence (Serum/Plasma)

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

This test measures how certain bacteria, specifically *Escherichia coli*, adhere to host cells in your blood. It helps assess immune response or infection-related adherence patterns.

Quick summary

["This test may aid in diagnosing or monitoring infections or immune conditions linked to bacterial adherence."]

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

Key facts at a glance

LOINC
53945-2
Short code
E coli adher pattern Islt HEp2 subst
Synonyms
E coli adher pattern Islt HEp2 subst
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
hep-substrate
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 This Test Measures

The test evaluates the presence and pattern of *E. coli* adherence to cells in your serum or plasma. It detects specific proteins or markers that bacteria use to attach to host tissues, which can indicate infection or immune activity.

Why It Might Be Ordered

Your healthcare provider may order this test if you have symptoms of infection (e.g., fever, fatigue), suspected bacterial adherence-related conditions, or if you’re being evaluated for immune disorders involving microbial interactions.

Common Uses in Clinical Practice

This test is often used in research or specialized diagnostics to study infections, immune responses, or adherence mechanisms in *E. coli* infections. It may also support studies on chronic conditions where bacterial adherence plays a role.

What to Expect Before the Test

No special preparation is typically required. You may provide a blood sample (serum or plasma) during a routine clinic visit or lab draw. If you’re using blood thinners, inform your provider beforehand.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal adherence patterns detected by this test may suggest active infection, immune dysfunction, or conditions where bacteria persistently attach to tissues. Results can guide treatment decisions, especially in complex infections or research settings.

Short name

E. coli Adherence Test

Frequently asked questions

Will this test show if I have a general bacterial infection?
No, this test specifically focuses on *E. coli* adherence patterns in your bloodstream. It does not replace standard bacterial culture tests for general infection diagnosis.
How long will it take to get results?
Results may take several days to a week, depending on lab processing and testing complexity. Your provider will contact you once available.
Can I take medications before this test?
Most medications do not affect this test, but avoid blood-thinning drugs if instructed by your provider. Always follow your healthcare team’s guidance.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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