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Microbiological culture and sensitivity of pharyngeal swab

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

This test helps identify bacteria or other microorganisms present in your throat, which can help guide treatment for infections like strep throat or other throat infections.

Quick summary

["A throat culture helps determine the best antibiotic if you have a bacterial infection."]

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

Key facts at a glance

LOINC
76081-9
Short code
MRSA Pharynx Ql Cult
Synonyms
MRSA Pharynx Ql 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

What Does This Test Measure?

This test involves collecting a sample from your throat using a swab. The sample is then sent to a lab to grow and identify any bacteria or other microorganisms present. This process can take several days to produce results.

How Is the Sample Collected?

A healthcare provider will gently swab the back of your throat. You may feel a slight tickling or discomfort, but it usually doesn’t cause pain. The swab is then placed in a special container for transport to the lab.

Why Might This Test Be Ordered?

Your doctor may recommend this test if you have symptoms like sore throat, fever, swollen lymph nodes, or difficulty swallowing. It helps distinguish between bacterial and viral infections that may require different treatments.

What Are Possible Results?

Results can show the presence of specific bacteria (e.g., *Streptococcus*), fungi, or other microorganisms. If bacteria are identified, your doctor can prescribe targeted antibiotics. If no bacteria are found, they may recommend antiviral treatments or supportive care.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pharynx Culture

Frequently asked questions

How long does it take to get results?
Results typically take 2–5 business days, depending on lab processing times. Your doctor will contact you once results are available.
What if my throat culture comes back negative?
A negative result means no bacteria were detected in the sample. If you still have symptoms, your doctor may recommend further testing (e.g., rapid strep test) or monitor your condition closely.
Can I take antibiotics before getting this test?
No, antibiotics should not be taken before the culture. They can interfere with the test results by killing bacteria that might otherwise be identified.
  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