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Asthma-I: Introduction

Asthma-I: Introduction

Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...

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Asthma-II: Pathophysiology and Classification

Asthma-II: Pathophysiology and Classification

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Asthma: Pathogenesis and Management

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Related Experiment Video

Updated: Jun 4, 2025

Collection and Extraction of Occupational Air Samples for Analysis of Fungal DNA

Collection and Extraction of Occupational Air Samples for Analysis of Fungal DNA

Published on: May 2, 2018

[Occupational asthma in a laboratory technician].

Richard Pougnet¹, David Lucas², Brice Loddé¹

¹Santé au Travail, Université de Bretagne Occidentale, 2 avenue Foch, 29200 Brest, France.

Annales De Biologie Clinique

|January 4, 2025

Summary

A laboratory technician developed occupational allergic asthma from formaldehyde exposure, even at low levels. This rare case highlights the importance of recognizing formaldehyde-induced asthma in lab settings.

Keywords:

asthma formaldehyde laboratory personnel occupational asthma

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Area of Science:

Occupational Medicine
Allergology
Toxicology

Background:

Occupational asthma is a significant workplace health concern.
Formaldehyde is a common sensitizer in laboratory environments.
Exposure to formaldehyde can trigger asthma symptoms even below regulatory limits.

Purpose of the Study:

To report a rare case of occupational allergic asthma caused by formaldehyde exposure in a laboratory technician.
To discuss the diagnostic challenges and clinical presentation of formaldehyde-induced asthma.
To review common occupational asthmas prevalent among laboratory technicians.

Main Methods:

Case report detailing a laboratory technician's exposure history and symptoms.
Clinical examination and assessment by an occupational medicine physician.
Pulmonary function tests to evaluate bronchial hyperactivity.

Main Results:

The patient experienced asthma attack symptoms upon exposure to formaldehyde.
Bronchial hyperactivity was confirmed through respiratory function tests.
The diagnosis was supported by symptom recurrence and absence of other allergies.

Conclusions:

Formaldehyde-induced occupational asthma, though rare, is a critical diagnosis to consider in laboratory personnel.
Early recognition and intervention are crucial for managing occupational asthma.
This case underscores the need for awareness regarding various occupational asthmas in laboratory settings.