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Bacteriaburnanaerobecult

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

This test identifies anaerobic (oxygen-hating) bacteria that may be causing an infection in a burn wound.

Quick summary

{"This test finds bacteria that live without oxygen in burn wounds","Helps doctors choose the right antibiotics for treatment","Results help guide proper wound care management","Anaerobic infections can cause serious complications if untreated","Sample is taken directly from the burn wound, not blood"}

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

Key facts at a glance

LOINC
87936-1
Short code
BNACRC
Synonyms
Bacteria Burn Anaerobe Cult
Category
chemistry
Sample
serum
Container
Sterile, leak-proof container with anaerobic transport medium (e.g., Anaerobic Transport Medium, Port-A-Cul vial) or sterile screw-capped tube. Specimens may also be submitted in anaerobic blood culture bottles for fluid samples. Tissue samples should be placed in sterile containers with a small amount of sterile non-bacteriostatic saline to prevent drying.
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 0 years
Method
anaerobic-culture
CPT
87075 (Culture, bacterial; any source, anaerobic with isolation and presumptive identification of isolates); 87076 (Anaerobic identification); 87077 (Aerobic identification); 87176 (Tissue homogenization); additional CPT codes may apply for susceptibility testing (87181-87188), organism identification by alternative methods (87149, 87150), and additional organism identifications
SNOMED
119376003 |Bacteriological culture (procedure)|; 442150001 |Anaerobic culture (procedure)|; 258520002 |Burn of skin (disorder)|; 386532009 |Identification of organism (procedure)|; 35995006 |Anaerobic bacteria (organism)|
Specimen volume
Tissue biopsy: minimum 0.5-1 g of viable tissue (preferably from the base or advancing edge of the wound); Aspirated pus/fluid: 1-5 mL; Swab samples: use anaerobic transport swab system (less preferred than tissue or aspirate for anaerobic recovery); Eschar: 1-3 g of debrided tissue when clinically indicated
Stability
Room temperature: maintain at ambient temperature (20-25°C) and transport to laboratory within 2 hours of collection for optimal anaerobic organism recovery. Do NOT refrigerate anaerobic specimens as cold temperature is lethal to many anaerobes. Specimens in anaerobic transport medium are stable for up to 24-48 hours at room temperature. If processing will be delayed beyond 2 hours, place specimen in appropriate anaerobic transport medium immediately upon collection.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
48–336 hours
Order
routine

What is this test?

This test looks for anaerobic bacteria in a burn wound. Anaerobic bacteria are germs that can grow without oxygen. Burn wounds can become infected with various bacteria, including anaerobic ones that thrive in deep tissue where oxygen levels are low. Identifying these specific bacteria helps doctors provide the most effective treatment.

How is the sample collected?

A healthcare provider will collect a sample from the burn wound using a sterile swab, tissue sample, or fluid from the affected area. This is not a blood test. The sample is then placed in special containers that keep it free from oxygen and sent to the laboratory for testing.

Why is this test important for burn patients?

Burn wounds are prone to infection because the damaged skin cannot protect against germs. Anaerobic bacteria can cause serious infections that spread deep into the tissue. Finding out exactly which bacteria are present helps doctors prescribe the right antibiotics and determine the best wound care approach.

What do the results mean?

If anaerobic bacteria are found, the report will identify the specific type. This information helps your healthcare team choose targeted antibiotics rather than using broad-spectrum drugs. If no anaerobic bacteria are found, it may indicate the infection is caused by other types of germs or that the wound is healing well.

Reference range

No anaerobic bacteria isolated. Report identifies anaerobic organisms present (e.g., Bacteroides fragilis group, Clostridium perfringens, Peptostreptococcus spp., Prevotella spp., Fusobacterium spp., Propionibacterium spp., Finegoldia magna, Anaerococcus spp.) with quantitation (rare, few, moderate, many) when applicableN/A

Specimen: serum

No special patient preparation required. For specimen collection, ensure proper aseptic technique. Discontinue topical antimicrobial agents at the burn site for 24-48 hours prior to collection when possible (consult physician). Avoid contamination from surrounding skin flora. If patient is on systemic antibiotics, document the specific agents and timing of last dose as this information aids in culture interpretation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Does this test hurt?
The sample collection may cause brief discomfort, similar to taking a swab from a wound. Your healthcare provider will try to minimize any pain during the collection process.
How long does it take to get results?
Anaerobic culture results typically take 2-5 days because these bacteria grow slowly and require special laboratory conditions. The full identification and antibiotic sensitivity results may take up to a week.
Do I need to prepare for this test?
No special preparation is needed. Simply follow your healthcare provider's instructions for wound care before the sample is taken.
What happens if anaerobic bacteria are found?
Your doctor will prescribe antibiotics that are specifically effective against anaerobic bacteria. You may also need additional wound care treatments. The doctor will explain the full treatment plan based on your specific situation.
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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