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Pneumococcal Nucleic Acid Detection in Respiratory Specimen by Probe-Based Molecular Assay

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

This test checks for the presence of genetic material from *Pneumococcus* bacteria in your respiratory secretions, such as sputum or nasal swab samples. It helps identify infections caused by these bacteria, which can lead to serious illnesses like pneumonia or sinus infections.

Quick summary

["Quickly detects potential pneumococcal infections with a simple swab or sputum sample."]

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

Key facts at a glance

LOINC
92125-4
Short code
S pneum DNA Resp Ql NAA+probe
Synonyms
S pneum DNA Resp Ql NAA+probe
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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

How the Test Works

The test uses a specialized probe to detect genetic material (nucleic acids) from *Pneumococcus* bacteria. A small sample of your respiratory secretions—collected via a swab or sputum—is analyzed to see if the bacteria’s DNA is present. This method is highly sensitive and can provide results in minutes.

What to Expect Before the Test

No special preparation is needed. You may have a nasal swab or cough into a cup to collect sputum. If you’re having trouble producing sputum, your doctor may guide you on how to do so. Avoid smoking or using nasal sprays 30 minutes before the test if instructed.

Possible Results and Their Meaning

A positive result means the test detected genetic material from *Pneumococcus* bacteria, suggesting an active infection. A negative result means no detectable genetic material was found, but this does not rule out infection in all cases. Follow-up testing or clinical evaluation may be needed.

When This Test Might Be Ordered

Your doctor may recommend this test if you have symptoms like fever, cough, chest pain, or difficulty breathing—especially if you’ve been exposed to someone with a pneumococcal infection. It’s also used in hospital settings to guide treatment for suspected pneumonia or respiratory infections.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Pneumococcal NA Test (Respiratory)

Frequently asked questions

Why is this test important?
This test helps doctors quickly identify *Pneumococcus* infections, allowing for faster and more targeted treatment. Early detection can prevent complications like pneumonia, sepsis, or long-term lung damage. It’s especially useful in high-risk groups, such as elderly adults, young children, or those with weakened immune systems.
What does a positive result mean for my health?
A positive result means you likely have an active *Pneumococcus* infection. Your doctor will work with you to determine the best treatment, which may include antibiotics. If you’re at high risk, they may also recommend preventive vaccines to help protect against future infections.
Can a negative result mean I don’t have an infection?
Not necessarily. While a negative result means no *Pneumococcus* genetic material was detected in this sample, other bacteria or viruses could still be causing your symptoms. Your doctor may order additional tests or repeat this test if symptoms persist.
  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