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Antimicrobial Activity of Serum Against *Pseudomonas putrefaciens* (Qualitative Screening)

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

This test checks whether your serum has natural antimicrobial properties against *Pseudomonas putrefaciens*, a type of bacteria that can cause infections in some medical settings.

Quick summary

["Assesses your body’s innate ability to fight specific bacteria through blood samples."]

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

Key facts at a glance

LOINC
23294-2
Short code
M putrefaciens Ab Ser Ql IA
Synonyms
M putrefaciens Ab Ser Ql 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

What Does This Test Measure?

This test evaluates the qualitative (yes/no) effectiveness of your serum in inhibiting bacterial growth of *Pseudomonas putrefaciens*. It does not measure exact concentrations or activity levels but rather whether your blood has sufficient antimicrobial activity against this organism.

Why Might This Test Be Ordered?

Your healthcare provider may order this test if you are at risk for infections involving *Pseudomonas putrefaciens*, such as in certain surgical procedures, long-term hospital stays, or immune-compromised conditions. It helps determine if your body’s natural defenses are adequate before or after treatment.

What to Expect Before the Test

No special preparation is needed. You will provide a blood sample (serum) drawn from a vein, similar to other routine blood tests. The sample is then tested in a lab for antimicrobial activity against the specified bacteria.

What the Results Mean

Results are qualitative: either positive (serum shows antimicrobial activity) or negative (serum does not). A positive result suggests your serum may have sufficient natural defenses, while a negative result may indicate a need for further evaluation or antimicrobial support.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Serum Antipseudomonas Activity Test

Frequently asked questions

What does a positive result mean?
A positive result means your serum contains natural antimicrobial properties that can inhibit the growth of *Pseudomonas putrefaciens*. This suggests your body’s immune response may be adequate for this specific bacteria, but further clinical context is needed to interpret its broader relevance.
What if my test is negative?
A negative result indicates your serum may lack sufficient antimicrobial activity against *Pseudomonas putrefaciens*. This could prompt additional testing, adjustments to infection prevention protocols, or consideration of antimicrobial treatments to reduce infection risk.
How often should I get this test?
The frequency depends on your medical condition and risk factors. Your healthcare provider will determine if repeated testing is necessary, especially if you are undergoing treatments that could affect your immune response or susceptibility to infections.
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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