Mycoplasma pneumoniae antibody detection (serum/plasma) – Immunoassay (qualitative)
This test checks for antibodies against *Mycoplasma pneumoniae*, a common cause of respiratory infections like pneumonia and bronchitis. It helps determine if your immune system has ever encountered this bacteria or if you’re currently infected.
["This test helps diagnose respiratory infections caused by *Mycoplasma pneumoniae* and guides treatment decisions."]
Key facts at a glance
- LOINC
- 14486-5
- Short code
- Mycoplas+Ureoplas Penis Cult
- Synonyms
- Mycoplas+Ureoplas Penis Cult
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- organism-specific-culture
- 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 doctor may order this test if you have symptoms like persistent cough, fever, chest pain, or difficulty breathing—especially if you’ve been exposed to respiratory illnesses. It’s also used in cases where other infections (like strep throat or COVID-19) are suspected but tests for those don’t confirm a diagnosis.
How the Test Works
A small blood sample is taken from your arm. The lab uses an immunoassay to detect specific antibodies (IgG and IgM) against *Mycoplasma pneumoniae*. IgM antibodies appear early in infection and fade over weeks, while IgG antibodies develop later and persist longer, indicating past or ongoing exposure.
What to Expect Before the Test
No special preparation is needed. Wear comfortable clothing and fast for 8–12 hours if instructed (though this is rare for antibody tests). Avoid alcohol 24 hours before the test if your doctor advises it.
What to Expect During the Test
You’ll lie down while a healthcare provider inserts a needle into your vein. The procedure takes 5–10 minutes. You may feel a brief pinch, but it’s usually over quickly. A bandage will cover the site afterward.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive results (detecting IgM antibodies) suggest recent infection, while IgG antibodies alone may indicate past exposure. Together, they help diagnose *Mycoplasma pneumoniae* infections, especially in cases where cultures or other tests are inconclusive. This test is particularly useful for diagnosing atypical pneumonia in adults or children with persistent symptoms.
Short name
Mycoplasma pneumoniae IgG/IgM screening
Frequently asked questions
How long does it take to get results?
Can I get this test at home?
What if I have a weak immune system?
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