Pb
Mercury Toxicity
Pesticides
Exposure Testing
100

This common metal neurotoxin was banned from gasoline and paint in the U.S. in the 1970s but is still found in old homes and imported goods.

What is lead?

100

The most common route of human exposure to methylmercury is through consumption of this food group.

What is fish?

100

This class of pesticides inhibits acetylcholinesterase, causing cholinergic overstimulation.

What are organophosphates?

100

This body fluid is commonly tested for toxicant exposure, but its sensitivity may decrease if collection is delayed.

What is urine?

200

Children absorb approximately this percentage of ingested lead.

What is 50%?

200

Methylmercury is especially dangerous during pregnancy because it is this type of molecule.

What is lipophilic (fat-soluble)?

200

Chronic pesticide exposure is associated with increased risk for which neurodegenerative disease?

Parkinson's Disease

200

Compared to other substances, these two types of toxicants tend to remain in the body longer and may still be detected in delayed urine samples.

What are metals and mold mycotoxins?

300

Lead mimics this essential mineral, allowing it to cross the blood–brain barrier.

What is calcium?

300

Symptoms of mercury poisoning may begin with paraesthesia and progress to this severe motor disorder.

What is ataxia?

300

Pesticides can be absorbed through ingestion, inhalation, or this route.

What is skin contact?

300

These brain imaging methods are useful to rule out other causes of neurological symptoms and may reveal atrophy or white matter changes related to neurotoxicity.

What are CT and MRI?

400

Lead exposure primarily affects these cognitive domains.

What is attention and executive functioning?

400

This form of mercury is the deadliest and can be absorbed rapidly through the skin.

What is dimethylmercury?

400

What are three examples of pests?

what are insects, plant pathogens, weeds, rodents, birds, nematodes, and microbes?

400

These functional neuroimaging techniques can show altered brain metabolism in patients with suspected neurotoxic exposure.

What are PET and SPECT?

500

Children with blood lead levels above 44 µg/dL may require this medical treatment.

What is chelation therapy?

500

Prenatal mercury exposure can result in these three major neuro outcomes.

What are intellectual disability, seizures, and motor incoordination?

500

What are two neurodevelopmental disorders associated with pesticide exposure?

What is ADHD and Autisim?

500

This blood-based antibody is often elevated in neurotoxic conditions and may provide evidence of chronic effects on the nervous system.

What is the antimyelin antibody?