What is the method of analyzing pesticides in the body?

What is the method of analyzing pesticides in the body?

• A. Measurement of serum creatine
• B. Measurement of serum pseudocholinesterase
• C. Mass spectrometry
• D. Enzyme-linked immunosorbent assay

Answer: (B)

Serum pseudocholinesterase is a vital enzyme to measure when analyzing for certain pesticides, particularly organophosphates and carbamates, which are known to inhibit this enzyme. When these pesticides enter the body, they can disrupt normal cholinergic activity, leading to decreased levels of pseudocholinesterase. This enzyme serves a crucial role in the breakdown of acetylcholine, a neurotransmitter, and its inhibition can result in significant toxicity, manifesting in various symptoms.

Measuring serum pseudocholinesterase levels therefore offers a specific indicator of pesticide exposure, as lower levels suggest potential poisoning or toxicity from these substances. This method is not only significant for clinical diagnostics but can also reflect the degree of exposure to these harmful compounds.

In contrast, methods such as mass spectrometry, while highly accurate and capable of identifying a wide range of substances, may be more complex and not as targeted for the initial assessment of pesticide exposure. Similarly, enzyme-linked immunosorbent assay (ELISA) is effective for certain types of substances but may not specifically address the physiological effects of cholinesterase inhibition seen with pesticide exposure. Measurement of serum creatinine, on the other hand, is related to kidney function and does not provide direct