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Bacteriaboneaerobecult

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

A laboratory test that identifies and grows aerobic bacteria from a bone sample to diagnose bone infections.

Quick summary

{"This test detects bacterial infections in bone tissue","It helps diagnose osteomyelitis (bone infection)","A small bone sample is collected and cultured in a laboratory","Results help doctors choose the right antibiotics","The test takes several days to complete"}

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

Key facts at a glance

LOINC
602-3
Short code
BCTB
Synonyms
Bacteria Bone Aerobe Cult
Category
chemistry
Sample
serum
Container
Sterile, leak-proof container without preservative; sterile saline may be added to prevent drying. Transport in dedicated bone specimen transport system or anaerobic transport medium if anaerobe culture also requested.
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
0–120 years
Method
aerobic-culture
CPT
87070
SNOMED
442126005
Specimen volume
Bone biopsy or aspirate: 1-5 grams of tissue preferred. Minimum: 0.5 mL aspirate or small bone fragment. Multiple specimens from different sites recommended when feasible.
Stability
Room temperature: 2 hours maximum. Refrigerated (2-8°C): 24 hours acceptable but immediate processing preferred. Do not freeze. Specimen should be processed as soon as possible to maximize pathogen recovery.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
48–168 hours
Order
routine

What is this test?

The Bone Bacteria Culture test is a laboratory procedure that identifies aerobic (oxygen-requiring) bacteria from a sample of bone tissue. This test is primarily used to diagnose osteomyelitis, which is a serious bone infection that can result from trauma, surgery, or spreading from another infection site in the body.

How is the sample collected?

A healthcare provider collects a small sample of bone tissue or bone aspirate (fluid) from the affected area. This is usually done through a needle biopsy or during a surgical procedure. The sample is then placed in special culture media that allows bacteria to grow if present.

What happens in the laboratory?

The bone sample is transferred to sterile culture containers with nutrients that support bacterial growth. These cultures are incubated and monitored for 2-7 days. If bacteria grow, laboratory technicians identify the specific type and perform sensitivity testing to determine which antibiotics will effectively treat the infection.

How long does it take to get results?

Preliminary results may be available within 2-3 days, but final results including bacterial identification and antibiotic sensitivity can take up to 7 days or longer. This waiting period is necessary because bacteria need time to grow and be properly identified.

Reference range

No aerobic bacteria isolated. Reportable organisms include Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus species, Enterobacteriaceae, Pseudomonas aeruginosa, Cutibacterium acnes (if extended incubation), and other clinically significant pathogens.N/A

Specimen: serum

No fasting required. Inform provider of recent antibiotic use as it may affect culture results. Specimen should be collected prior to antibiotic administration when possible. Aseptic collection technique is critical to avoid contamination.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings2

Frequently asked questions

Does the test hurt?
The bone sampling procedure may cause some discomfort or pain, similar to other biopsy procedures. Your doctor will use local anesthesia to minimize pain during the collection process.
Why can't a blood test be used instead?
While blood tests can indicate infection, they cannot identify the specific bacteria causing a bone infection. This bone culture test provides direct evidence of the exact organism present in the bone, which is essential for targeted treatment.
What if no bacteria grow in the culture?
A negative result (no bacteria growth) could mean the infection is caused by viruses, fungi, or anaerobic bacteria that require different culture conditions. It could also indicate that you do not have a bacterial infection, or that you have already started antibiotics which can affect results.
Do I need to prepare anything before the test?
Your healthcare provider will give you specific instructions. You may need to stop certain medications before the procedure. Inform your doctor about all medications you are taking, especially antibiotics or blood thinners.
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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