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Bacteria causing false positive test for phosphatidylglycerol in amniotic fluid
American Journal of Obstetrics and Gynecology
|April 15, 1985
Summary
Phosphatidylglycerol in vaginal amniotic fluid may indicate bacterial contamination, not necessarily fetal lung maturity. This finding highlights the importance of sample source when assessing fetal lung development.
Area of Science:
- Obstetrics and Gynecology
- Clinical Chemistry
- Microbiology
Background:
- Phosphatidylglycerol is a key biomarker for assessing fetal lung maturity.
- Accurate assessment of fetal lung maturity is crucial for managing high-risk pregnancies.
Observation:
- A case presented with phosphatidylglycerol detected in vaginal pool amniotic fluid.
- The same patient's amniotic fluid obtained via amniocentesis tested negative for phosphatidylglycerol.
Findings:
- Bacterial contamination of the vaginal pool amniotic fluid sample was identified.
- These contaminating bacteria demonstrated the capacity to produce phosphatidylglycerol.
Implications:
- The presence of phosphatidylglycerol in vaginal pool samples may be due to bacterial production rather than fetal lung maturity.
- Clinicians should consider the source of amniotic fluid samples when interpreting phosphatidylglycerol levels.
- This case underscores the need for careful sample handling and interpretation in prenatal diagnostics.