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Mycoplasma pneumoniae culture (qualitative) from respiratory specimen

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

This test checks for the presence of *Mycoplasma pneumoniae*, a bacteria that can cause respiratory infections like pneumonia or bronchitis.

Quick summary

["A positive culture helps confirm if this specific bacteria is causing your symptoms."]

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

Key facts at a glance

LOINC
20896-7
Short code
Mycoplasma Tiss Ql Cult NPIP
Synonyms
Mycoplasma Tiss Ql Cult NPIP
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
organism-specific-culture-npip-method
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

This test helps your doctor find out whether harmful bacteria are causing your symptoms. Identifying the exact germ responsible allows your care team to choose the most effective treatment, so you can start feeling better sooner and avoid taking medications that may not work.

Your healthcare provider may order this test if you have symptoms like persistent cough, fever, or chest pain that suggest a bacterial lung infection. It’s particularly useful for diagnosing *Mycoplasma pneumoniae*—a type of bacteria that doesn’t grow well in standard lab cultures, so special techniques are needed.

During the test, a small sample is examined in a laboratory to see whether bacteria or other germs are present. Specialists may also grow the sample in culture and run sensitivity checks, which show which antibiotics are most likely to clear the infection that is found.

A sample of your respiratory secretions (e.g., sputum, nasal swab, or throat culture) is collected and grown in a lab under controlled conditions to detect the presence of *Mycoplasma pneumoniae*. If the bacteria are present, they’ll multiply and can be identified through microscopic or biochemical methods.

A member of your care team will collect the sample quickly and gently, following simple steps designed to keep you comfortable. Depending on the type of test ordered, the sample may be taken with a swab, a small container, or a blood draw, and the process usually takes only a few minutes.

You’ll likely have a nasal or throat swab, or cough into a sterile container. The sample is then sent to a lab where it’s processed to support bacterial growth over several days.

After the sample is collected, you can usually return to your normal activities right away. Some people notice mild soreness at the collection site, but this typically goes away within a day. Your sample is sent to a laboratory, and your doctor will contact you to discuss the results and any next steps.

Results may take 3–10 days or longer, depending on the lab’s methods. A positive result means the bacteria was detected; a negative result means it wasn’t found in the sample collected.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Mycoplasma pneumoniae Culture

Frequently asked questions

This test is critical for diagnosing *Mycoplasma pneumoniae* infections, which can cause mild to severe respiratory illness. It helps differentiate this infection from others (e.g., viral infections, other bacterial causes) and guides treatment decisions, such as antibiotic selection.
Most results are ready within two to three days, although some tests take longer if the sample must be cultured in the laboratory. Your doctor's office will call or send you a message as soon as your results are available.
Results typically take 3 to 10 days or longer, depending on the lab’s processing time and confirmation methods. Your provider will contact you once they’re ready.
You should avoid taking antibiotics before the test unless your doctor tells you to, because they can lower the amount of bacteria in the sample and affect the results. If you have already started antibiotics, let your care team know.
Yes, but it’s important to inform your healthcare provider before the test. Antibiotics can affect results, so they may need to adjust their approach or use alternative testing methods.
Minimal discomfort is expected—swabs may cause slight irritation or tickling, but it’s usually brief. If you have a severe cough, your provider may use a different method to collect the sample.
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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