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Helicobacter pylori (H. pylori) Stool Antigen Test

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

A laboratory test that identifies bacteria present in burn wounds to guide appropriate treatment.

Quick summary

{"This test detects and identifies bacteria causing infection in burn wounds","A sample is collected from the burn site and sent to a laboratory for analysis","Results help doctors choose the most effective antibiotics for treatment"}

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

Key facts at a glance

LOINC
603-1
Short code
BURNCX
Synonyms
Bacteria Burn Cult
Category
chemistry
Sample
serum
Container
Sterile, leak-proof container for tissue or swab specimens; sterile transport medium (e.g., Amies or Stuart transport medium) for swabs; sterile screw-capped container for aspirated fluids or biopsy tissue
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 0 years
Method
culture
CPT
87045
SNOMED
442125009
Specimen volume
Adequate tissue sample (at least 0.5 g of burn eschar or tissue) OR swabs in transport medium OR 1-5 mL of aspirated fluid; minimum volume required depends on specimen type
Stability
Room temperature: 2 hours maximum for optimal organism viability; refrigerated (2-8°C): up to 24 hours in transport medium; do not freeze specimens intended for culture
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
48–168 hours
Order
routine

This test checks for an infection with Helicobacter pylori (H. pylori), a common bacterium that settles in the stomach lining and can cause gastritis, stomach ulcers, and long-lasting indigestion or discomfort.

The Bacteria Identified in Burn by Culture test is a laboratory examination that detects and identifies specific bacteria present in burn wounds. When skin is burned, it becomes vulnerable to infection from various bacteria. This test helps healthcare providers identify exactly which bacteria are causing an infection so they can prescribe the most appropriate treatment.

Your doctor will ask you to provide a small stool sample. You will collect it at home in a clean container following the instructions given to you, and then return it to the laboratory within the recommended time frame.

A healthcare professional will gently swab the burn wound or collect a small tissue sample from the affected area. The sample is then placed in a sterile container and sent to a laboratory. In the lab, the sample is cultured (grown) to allow bacteria to multiply and be identified. This process typically takes 24-72 hours.

This test is performed to find out whether H. pylori is causing symptoms such as stomach pain, bloating, nausea, or loss of appetite, and to help your doctor choose the most appropriate treatment, often involving antibiotics.

This test is performed when a healthcare provider suspects a bacterial infection in a burn wound. Signs of infection may include increased pain, redness, swelling, warmth, pus, or fever. Identifying the specific bacteria helps doctors select the most effective antibiotic and monitor for antibiotic-resistant organisms.

A positive result means H. pylori bacteria were detected in your sample, which suggests an active infection that may require antibiotic treatment. A negative result means the bacteria were not found, and your doctor may explore other causes of your symptoms.

Results will show which specific bacteria were found in the burn wound culture. Common bacteria found in burn infections include Staphylococcus aureus, Streptococcus pyogenes, Pseudomonas aeruginosa, and various gram-negative bacteria. If no bacteria are grown (negative culture), it may mean the wound is not infected or that antibiotics are already working.

Reference range

No growth of pathogenic bacteria; presence of normal skin flora (e.g., coagulase-negative staphylococci, Corynebacterium species) is not considered clinically significant. Results reported as organism identification with colony description and quantitation when applicable.N/A

Specimen: serum

No special patient preparation required. The burn wound should be cleaned and debrided of topical antimicrobial agents when clinically feasible prior to specimen collection. Specimens should be collected prior to administration of systemic antibiotics when possible to maximize recovery of organisms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Burn wounds are highly susceptible to infections due to the loss of the skin's protective barrier. Bacterial infections in burns can lead to sepsis, delayed healing, scarring, and in severe cases, death. This culture test is critical for: (1) Identifying the causative organism of infection, (2) Guiding targeted antibiotic therapy, (3) Detecting antibiotic-resistant bacteria such as MRSA, (4) Monitoring the effectiveness of treatment, and (5) Preventing the spread of infection to other body areas.

Frequently asked questions

Does the test hurt?
You may feel mild discomfort when the sample is collected from the burn wound. The area may be sensitive, especially if the burn is healing. Your healthcare provider will use techniques to minimize discomfort.
How long does it take to get results?
Preliminary results may be available in 24-48 hours, but final identification and antibiotic sensitivity testing can take 3-5 days. Some bacteria need more time to grow and be properly identified.
Do I need to fast before this test?
No, fasting is not required for this test. You can eat and drink normally before and after the sample collection.
What happens if bacteria are found?
If bacteria are identified, your doctor will prescribe appropriate antibiotics based on the specific bacteria found and its sensitivity to various antibiotics. Treatment may be adjusted based on culture results.
Can I have this test if I'm already taking antibiotics?
Yes, but be sure to tell your doctor about any antibiotics you are currently taking, since they may affect the test results. Your healthcare provider will determine whether you should continue taking them or pause them before the test.
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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