Respiratory effects due to occupational exposure to formaldehyde: Systematic review with meta-analysis

Neeraj Mathur1, S K Rastogi

  • 1Epidemiology Division, Industrial Toxicology Research Centre, M.G. Road, P Box 80, Lucknow - 226 001, India.

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When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
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Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
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The Respiratory System01:16

The Respiratory System

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Chemical Factors Affecting Respiration Centers

Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
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Respiratory Assessment: Purpose and Indications

Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
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Factors Affecting Respiration01:24

Factors Affecting Respiration

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Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
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Environmental pollutants like...