NURSING EXAM QUESTIONS
TOXICOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Lead
|
|
Mercury
|
|
Arsenic
|
|
Iron
|
Detailed explanation-1: -Some heavy metals are either essential nutrients (typically iron, cobalt, and zinc), or relatively harmless (such as ruthenium, silver, and indium), but can be toxic in larger amounts or certain forms. Other heavy metals, such as arsenic, cadmium, mercury, and lead, are highly poisonous.
Detailed explanation-2: -Mercury, lead, chromium, cadmium, and arsenic have been the most common heavy metals that induced human poisonings. Here, we reviewed the mechanistic action of these heavy metals according to the available animal and human studies.
Detailed explanation-3: -Iodine, potassium, and sodium are not heavy metals.
Detailed explanation-4: -Heavy metal poisoning is caused by the accumulation of certain metals in the body due to exposure through food, water, industrial chemicals, or other sources. While your body needs small amounts of some heavy metals to function normally-such as zinc, copper, chromium, iron, and manganese-toxic amounts are harmful.