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Pseudomonas aeruginosa Detection, Specimen — Qualitative

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

A qualitative test that checks a submitted specimen for evidence of Pseudomonas aeruginosa, a bacterium that can cause infection.

Quick summary

["A positive result indicates that evidence of Pseudomonas aeruginosa was detected in the submitted specimen."]

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

Key facts at a glance

LOINC
61059-2
Short code
PPAA Spec Ql
Synonyms
PPAA Spec Ql
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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?

This laboratory test checks a submitted specimen for evidence of Pseudomonas aeruginosa. The result is qualitative, meaning it reports whether evidence was detected rather than providing a numeric measurement.

Why might I need this test?

The test may be ordered to evaluate suspected infection, help identify the cause of symptoms, or determine whether Pseudomonas aeruginosa is present in a specimen. The type of specimen and the reason for testing depend on the clinical situation.

How is the test performed?

A laboratory professional examines the submitted specimen using a validated qualitative method. Depending on the test, the method may detect the bacterium, its genetic material, or another marker associated with it.

How do I prepare for the test?

Preparation depends on the specimen being tested and the collection method. Follow the laboratory or clinician's instructions, including whether the specimen should be collected at a specific time or handled in a particular way.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pseudomonas aeruginosa qualitative test

Frequently asked questions

Does a positive result always mean I have a Pseudomonas infection?
Not necessarily. The bacterium may be causing infection, or it may represent colonization or contamination, particularly when the specimen is not from an infected body site.
What does a negative result mean?
A negative result means that evidence of Pseudomonas aeruginosa was not detected by the test used. It does not completely exclude the bacterium, especially if the specimen was collected poorly or the bacterial burden was low.
Which specimen is used for this test?
The tested specimen depends on the specific laboratory test and clinical indication. It may be collected from a body site, such as urine, blood, sputum, or a wound, and collection instructions should be followed carefully.
  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