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Body Fluid DNA Probe for *Streptococcus* (Group A, B, C, G, etc.) Detection

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

This test checks for genetic material from certain bacteria (like *Streptococcus*) in your body fluids, such as blood or other samples, using a DNA probe method.

Quick summary

Helps diagnose infections caused by specific bacteria quickly and accurately.

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

Key facts at a glance

LOINC
76609-7
Short code
S pyogenes csrS # XXX.body fld NAA+probe
Synonyms
S pyogenes csrS # XXX.body fld 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

What This Test Measures

The test detects the presence of DNA from specific *Streptococcus* species (such as Group A, B, C, or G) in your body fluids. This is done by identifying unique genetic sequences that are unique to these bacteria. The probe binds to these sequences if they are present, confirming infection.

Why It’s Done

Your healthcare provider may order this test if you have symptoms like fever, sore throat, skin infections, or other signs of bacterial infection that *Streptococcus* could cause. It’s also used in certain clinical settings to confirm or rule out bacterial infections quickly.

How It Works

A small sample of your body fluid (like blood, urine, or other fluids) is collected and analyzed using a DNA probe technique. The probe is designed to match specific genetic sequences of *Streptococcus* bacteria. If the probe binds to these sequences, it indicates the presence of the bacteria.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to provide a sample (like blood or urine) depending on the clinical indication. Follow your healthcare provider’s instructions for sample collection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is particularly useful for diagnosing infections caused by *Streptococcus* bacteria, which can lead to serious conditions like pneumonia, sepsis, or skin infections. Early detection helps guide appropriate treatment, such as antibiotics, to prevent complications.

Short name

Strep DNA Probe Test

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within a few hours to a couple of days, depending on the lab’s processing time. Your healthcare provider will contact you once the results are ready.
Can this test be used for all types of *Streptococcus* infections?
This test specifically detects certain *Streptococcus* species (like Group A, B, C, or G). It may not cover all types of *Streptococcus* infections. Your healthcare provider will determine if this test is appropriate for your situation.
Is there any risk or discomfort associated with this test?
The test involves a simple sample collection, such as drawing blood or providing a urine sample. There may be minor discomfort or bruising at the sample site, but complications are rare. Always follow your healthcare provider’s instructions for sample collection.
  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