Pus Culture and Sensitivity Report Format
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What is the Pus Culture Test?
A pus culture test identifies the bacteria causing infection in a wound, abscess, or surgical site. It helps pinpoint the exact organism and guides effective antibiotic treatment.
What is a Pus Culture and Sensitivity Report Format?
This report presents the microbial findings from pus samples and lists the antibiotic sensitivity profile of the isolated organism to help doctors choose the right treatment.
Tests Included in Pus Culture Report
Test | Description |
Pus Culture | Detects bacterial growth in pus samples collected from infected areas. |
Antibiotic Sensitivity (AST) | Shows how the isolated bacteria respond to different antibiotics. |
Key Parts of a Pus Culture Report
Key Part | Description |
Specimen Source | Indicates site of infection—wound, abscess, surgical drain, etc. |
Microscopy | Details Gram stain findings and presence of pus cells or organisms. |
Culture Result | Identifies the specific pathogen isolated from the sample. |
Sensitivity Profile | Lists antibiotics tested and the organism’s response—Sensitive (S), Intermediate (I), or Resistant (R). |
Final Impression | Summarizes the likely cause and suggested therapy approach. |
Common Pathogens in Pus Culture
Organism | Clinical Relevance |
Staphylococcus aureus | Common in skin, soft tissue, and post-surgical infections. |
Pseudomonas aeruginosa | Often seen in chronic wounds, burns, or immunocompromised patients. |
Escherichia coli | Linked with abscesses, especially in intra-abdominal infections. |
Klebsiella spp. | May indicate hospital-acquired infections. |
Sample Antibiotic Sensitivity Format
Antibiotic | Sensitivity |
Amikacin | Sensitive (S) |
Cephalexin | Resistant (R) |
Clindamycin | Intermediate (I) |
Parameters to Consider in Pus Culture Report
Parameter | Interpretation |
Positive Culture | Confirms bacterial infection and identifies the causative organism. |
Polymicrobial Growth | Suggests mixed infection; may require broad-spectrum treatment. |
Antibiotic Resistance | Guides switch to second-line or targeted therapy. |
Absence of Growth | Could be due to prior antibiotic use or anaerobic bacteria not detected by standard culture. |
Guidelines for Pus Culture Report Format
Guideline | Description |
Sample Labeling | Clearly mention site and method of collection (aspiration, swab, drainage). |
Microscopy + Culture | Both provide valuable diagnostic information. |
Clinical Correlation | Always interpret findings in context with signs, symptoms, and imaging. |
What Do the Results Mean?
Result Type | Interpretation |
Pathogen Isolated | Indicates active bacterial infection requiring specific antibiotics. |
No Growth | May suggest sterile inflammation, poor sample quality, or anaerobic pathogens. |
Drug Resistance | Signals the need for revised antibiotic strategy or infectious disease consultation. |
Pus Culture and Sensitivity Report Interpretation
Test | Interpretation |
Pus Culture | Detects infective organisms in pus samples and provides sensitivity data to guide appropriate treatment. |
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