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Bacteriathroataerobecultorg5

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

A throat culture is a laboratory test that identifies bacteria growing in your throat to help diagnose infections such as strep throat.

Quick summary

{"This test finds harmful bacteria in your throat that may be causing infection","It helps doctors determine if you need antibiotics","Results typically take 2-3 days to complete","A simple throat swab is used to collect the sample","The test can identify if you are a carrier of certain bacteria"}

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

Key facts at a glance

LOINC
17902-8
Short code
THRC5
Synonyms
Bacteria Throat Aerobe Cult org #5
Category
chemistry
Sample
serum
Container
Sterile transport swab in Amies or Stuart's transport medium, or aerobic culturette system
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
0–120 years
Method
aerobic-culture
CPT
87081
SNOMED
428991006
Specimen volume
Single throat swab collected from the posterior pharynx and tonsillar areas
Stability
Room temperature: 2 hours; Refrigerated (2-8°C): 24 hours in transport medium; do not freeze
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
48–96 hours
Order
routine

What is this test?

A throat bacteria culture, also called an aerobe culture, is a test that collects a sample from your throat using a sterile swab. The sample is then placed in a special environment that allows bacteria to grow so they can be identified. This helps your doctor understand what type of bacteria is causing your symptoms and choose the most effective treatment.

How is the sample collected?

A healthcare provider will use a sterile cotton swab to gently rub the back of your throat and tonsils. This may cause a brief gagging sensation but should not be painful. The swab is then placed in a container and sent to a laboratory for testing.

Why might I need this test?

Your doctor may order this test if you have symptoms of a throat infection such as sore throat, difficulty swallowing, fever, swollen lymph nodes, or white patches on your tonsils. The test helps distinguish between bacterial infections (like strep throat) and viral infections (like the common cold), which is important because bacterial infections may require antibiotics while viral infections do not.

Reference range

No growth of pathogenic bacteria identified (fifth isolate reported from throat aerobic culture)N/A

Specimen: serum

Patient should refrain from eating, drinking, gargling, or using antiseptic mouthwash for at least 30 minutes prior to specimen collection. Recent antibiotic therapy should be disclosed to the laboratory.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings2

Frequently asked questions

Does a throat culture hurt?
The test may cause a brief uncomfortable feeling or gagging sensation when the swab touches the back of your throat, but it is generally not painful. The procedure only takes a few seconds.
How long does it take to get results?
Throat culture results typically take 2-3 days. This time is needed to allow bacteria to grow in the laboratory so they can be properly identified. Some rapid strep tests can provide preliminary results in minutes, but culture is more accurate.
Do I need to prepare for the test?
No special preparation is needed. However, it is helpful to avoid eating, drinking, or using mouthwash immediately before the test, as these may affect the sample.
What if my test is negative?
A negative result means no harmful bacteria were found in your throat culture. This suggests your sore throat may be caused by a virus, which typically resolves on its own without antibiotics. Your doctor will discuss your symptoms and appropriate treatment based on the results.
What happens if bacteria are found?
If bacteria are identified, your doctor will determine which antibiotic will work best against that specific type of bacteria. It is important to take all prescribed antibiotics as directed, even if you start feeling better, to ensure the infection is fully treated and to prevent antibiotic resistance.
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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