Mycoplasma pneumoniae Antibody, Qualitative (Serum/Plasma) by Nucleic Acid Amplification Test
This test detects antibodies to *Mycoplasma pneumoniae*, a bacteria sometimes linked to respiratory infections like pneumonia or bronchitis. It helps diagnose whether your immune system has responded to an infection caused by this organism.
["This test may be used if you’ve had symptoms of a respiratory infection and testing for other causes hasn’t confirmed the diagnosis."]
Key facts at a glance
- LOINC
- 23298-3
- Short code
- Mycoplasma Ag Spec Ql IF
- Synonyms
- Mycoplasma Ag Spec Ql IF
- Category
- chemistry
- Sample
- plasma
- Container
- Lavender-top (EDTA) or Green-top (Heparin)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- if
- 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
Your healthcare provider may order this test if you’ve had symptoms like cough, fever, or chest pain for weeks, especially if other tests (like a chest X-ray or culture) didn’t clearly identify the cause. It’s often used in cases where *Mycoplasma pneumoniae* is suspected but not definitively proven.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample (usually drawn from your arm) in a serum or plasma tube. The test analyzes a small amount of your blood for antibodies against *Mycoplasma pneumoniae* using a sensitive nucleic acid amplification method.
What the Test Results Mean
A positive result means your body has produced antibodies against *Mycoplasma pneumoniae*, suggesting past or recent infection. A negative result means no detectable antibodies were found, though this doesn’t always rule out infection if testing was done too early.
Common Causes of False Results
False positives or negatives can occur due to timing (e.g., testing too soon after infection) or other infections that trigger similar immune responses. Your provider will consider clinical symptoms and other test results when interpreting the result.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Role in Diagnosis and Management
Short name
Mycoplasma pneumoniae Antibody (Qualitative)
Frequently asked questions
Can this test help me get a diagnosis?
What if my test is positive?
How soon after infection should I get tested?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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