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Related Experiment Videos

Tentative reference values for some elements in broncho-alveolar lavage fluid.

L Romeo1, G Maranelli, F Malesani

  • 1Institute of Occupational Medicine, University of Verona, Italy.

The Science of the Total Environment
|June 9, 1992
PubMed
Summary

This study measured metal concentrations in broncho-alveolar lavage (BAL) fluid. Iron levels were highest, suggesting significant environmental exposure and its essential biological role.

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Area of Science:

  • Environmental Science
  • Toxicology
  • Pulmonary Medicine

Background:

  • Assessing metal exposure is crucial for understanding lung health.
  • Broncho-alveolar lavage (BAL) fluid offers a direct sample for analyzing lung burden.
  • Factors influencing metal detection in BAL require careful consideration.

Purpose of the Study:

  • To determine the concentrations of iron (Fe), manganese (Mn), lead (Pb), and chromium (Cr) in BAL fluid.
  • To investigate potential correlations between metal levels and patient characteristics or fluid parameters.
  • To discuss the diagnostic significance of elemental analysis in BAL fluid.

Main Methods:

  • Atomic Absorption Spectrometry (AAS) was employed for metal quantification.
  • BAL fluid was collected from 25 subjects with no significant occupational or environmental metal exposure.

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  • Pre-analytical and analytical factors affecting results were critically examined.

    • Main Results:

    • Metal concentrations in BAL fluid were reported in micrograms per liter.
    • No significant correlations were found between metal concentrations and recovered fluid volume, total cells, alveolar macrophages, or erythrocytes.
    • Results remained consistent across different age groups and sexes.

    Conclusions:

    • Iron concentrations were notably higher than other measured metals in BAL fluid.
    • Higher iron levels are likely attributable to both environmental exposure and its essential physiological function.
    • Elemental analysis of BAL fluid holds potential diagnostic value for assessing lung exposure and load.