Which of the following parts of the human body can be used as a sample/samples for the presence of mercury? 1. Blood 2. Hair 3. Nail Select the correct answer using the code given below:
Mercury Detection in Human Samples
Mercury exposure can be assessed by analyzing various biological samples from the human body. These samples reflect different timeframes of exposure.
- Blood: Recent or ongoing exposure to mercury can be detected in blood samples. It represents short-term exposure levels.
- Hair: Hair samples provide a longer-term view of mercury exposure, typically reflecting levels over the past few months, as mercury incorporates into the growing hair shaft.
- Nails: Similar to hair, nails also accumulate mercury over time, offering insight into exposure history, often reflecting the past several weeks to months.
Because mercury accumulates in these tissues, blood, hair, and nail samples can all be effectively used to test for its presence in the human body.
Important Questions from Chemical Poisoning
Consider the following statements regarding organophosphate-induced delayed polyneuropathy (OPIDN) :
1. It is a rare complication and occurs 2 - 3 weeks after acute exposure.
2. It is a feature of poisoning with certain organophosphorus compounds such as triorthocresyl phosphate.
3. Inhibition of acetylcholinesterase causes motor polyneuropathy with no evidence of sensory loss.
4. There is no specific therapy although regular physiotherapy may limit deformity caused by muscle wasting.
Which of the statements given above are correct?
- The toxic effects of aluminium phosphide is due to the release of:
- Use of calcium carbide for the artificial ripening of fruits is banned but it is often reported to be illegally used. What is/are the likely health hazards of exposure to this chemical?
1. Permanent damage to the eyes
2. Pulmonary edema
3. Irritation of mouth, throat and nose
Select the correct answer using the codes given below: - Which of the following statements is correct regarding Malachite that is used as food adulterant?
Consider the following statements:
1. All organochlorine pesticides (OCPs) enter the human bodies through food chain only.
2. Some of the OCPs are categorized as Persistent Organic Pollutants.
Which of the statements given above is/are correct?
