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Pseudomonas aeruginosa Antibody Titration (Serum/Plasma)

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

This test measures the level of antibodies your body produces in response to *Pseudomonas aeruginosa*, a type of bacteria that can cause infections in various parts of the body.

Quick summary

["Helps assess immune response to *Pseudomonas* exposure or infection."]

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

Key facts at a glance

LOINC
68976-0
Short code
P aeruginosa AP Ab Titr Ser IA
Synonyms
P aeruginosa AP Ab Titr Ser IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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

Doctors may order this test if you have a history of infections caused by *Pseudomonas*, are undergoing treatment for a serious infection, or if you have conditions that weaken your immune system. It can also help monitor your immune response to vaccines or treatments targeting *Pseudomonas*.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw blood. The process usually takes a few minutes. If you’re on blood-thinning medication, let your doctor know before the test.

What the Test Results Mean

Results show the antibody titer, which indicates the strength of your immune response. Higher titers suggest a stronger response, while lower or absent titers may mean your body isn’t producing enough antibodies to fight *Pseudomonas*.

Common Causes of Abnormal Results

Elevated antibody levels may indicate past exposure or infection. Low or absent levels could suggest immune deficiency, recent treatment with antibiotics, or no prior exposure. Always discuss results with your healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Pseudomonas Antibody Test

Frequently asked questions

Is it normal to feel tired or sick after this test?
You may experience mild discomfort or bruising at the injection site, but most people feel fine afterward. If you have severe pain, swelling, or signs of infection (like fever), contact your doctor.
How long will I need to wait for my results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will explain the meaning of your results during your follow-up visit.
Can I drink alcohol before this test?
No, avoid alcohol for 24 hours before the test to ensure accurate results. Alcohol can sometimes affect blood chemistry and antibody measurements.
  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