To examine a case of false-positive (1,3)-β-D-glucan (G test) results due to contamination from medical sterile gauze and discuss its implications for diagnosing invasive fungal diseases.
Key Findings:
The G test can yield false-positive results due to contamination from medical sterile gauze.
The patient showed clinical improvement despite consistently high G test results.
Microbiological evidence of infection was lacking, highlighting the need for careful interpretation of G test findings.
Interpretation:
The findings emphasize the importance of considering potential sources of contamination when interpreting G test results, especially in the absence of microbiological confirmation of infection.
Limitations:
The case study is based on a single patient, limiting generalizability and applicability to broader populations.
Potential for other unrecognized confounding factors affecting G test results, which may not have been identified.
Conclusion:
Careful evaluation of G test results is essential, particularly when clinical improvement is observed without microbiological confirmation. Contaminants like sterile gauze must be considered in differential diagnoses for invasive fungal diseases.
